DC: Hybridverse

A vast, ancient forest with dense vegetation. Oaks and pines predominate. It has rivers, caves, clearings, and marshes. Humidity is frequent, and its inhabitants fight over territories and protect their shelters.

Population:

• Bruce Wayne — Gray Wolf: Human body. Large ears with dark gray fur, long and thick tail, pronounced fangs, and silver fur on the nape of the neck, shoulders, and forearms. His eyes have wolf-like pupils.
• Dick Grayson — Gray Wolf: Human body. Black and gray ears, abundant tail, lighter fur on chest and cheeks, visible fangs and dark claws. He has tufts of hair sticking out of his ears.
• Jason Todd — Gray Wolf: Human body. Dark reddish ears with black tips, thick tail, abundant fur around the neck and shoulders, prominent fangs and strong claws.
• Tim Drake — Canadian lynx: Human-like body. Triangular ears with black tufts, short tail with a dark tip, grayish fur on the cheeks, and eyes with vertical pupils. It has retractable claws.
• Damian Wayne — Arabian wolf: Human body. Pointed sand-colored ears, thin tail, short beige and cream fur on arms and nape, defined fangs and slightly curved claws.
• Barbara Gordon — Red Fox: Human body. Large orange ears, light inside, long and abundant tail with white tip, reddish fur on cheeks and forearms and small claws.
• Cassandra Cain — Black Panther: Human body. Small, rounded ears, long, flexible tail, black fur on cheeks and limbs, feline eyes, and retractable claws. Her nose also has feline features.
• Stephanie Brown — European Hare: Human body. Long ears with light interior, small rounded tail, brown fur on cheeks and forearms, strong legs and elongated feet.
• Selina Kyle — Wildcat: Human body. Pointed ears with small tufts, medium tail with dark rings, spotted fur, eyes with vertical pupils, and retractable claws.

A vast savanna of golden grasslands, scattered trees, and warm temperatures. The dry and rainy seasons modify the landscape. Animals gather around lagoons and water sources, while predators travel great distances in search of food.

Population:

• Clark Kent — African Elephant: Human body. Large, wide ears, short, flexible trunk, ivory tusks, and grayish skin. He has a thin tail with a dark tuft and small patches of thick skin on his arms and legs.
• Jon Kent — African Elephant: Human-like body. Large ears, expressive trunk, small tusks, and gray skin. It has a long, thin tail, as well as visible folds on its neck, shoulders, and forearms.
• Conner Kent — African Elephant: Human-like body. Large ears, short trunk, small tusks, and dark gray skin. It has a thin tail, thick nails, and pronounced folds around its shoulders and knees.
• Lois Lane — Spotted Hyena: Human body. Rounded ears, short sandy-colored fur with dark spots, black-tipped tail, and strong jaws. She has more abundant fur on the nape of her neck and shoulders.
• Kara Zor-El — Cheetah: Human body. Small, rounded ears, long tail with black rings, golden fur with dark spots, and distinctive facial markings under the eyes.
• Lex Luthor — Leopard: Human body. Rounded ears, long spotted tail, light fur with dark rosettes on shoulders and back. He has feline eyes and retractable claws.
• Jimmy Olsen — Meerkat: Human body. Small ears, long, thin tail with a dark tip, light brown fur, and markings around the eyes. Its hands have strong claws.
• Lana Lang — Gazelle: Human body. Elongated ears, small curved horns, short tail and reddish-brown fur with white areas on chest and abdomen.

A region of marshes, swamps, and river mouths. The land is covered with reeds, exposed roots, and aquatic vegetation. There are deep channels, small islands, and areas of brackish water. Fog is common, and many species find refuge among the wetlands.

Population:

• Rose Wilson — American Crocodile: Human-like body. Olive-green scales on arms and legs, thick, muscular tail, partially elongated snout, and visible teeth. It has small bony plates on its back.
• Slade Wilson — Alligator: Greenish-gray scaly skin, robust tail, wide and elongated snout, conical teeth, and small hardened plates on neck and forearms.
• Blockbuster — Brown Bear: Human-like body. Rounded ears, dark brown fur, small tail, and body covered in abundant hair. It has long claws and a robust body structure.
• Shawn Tsang — Otter: Human body. Small ears, long, thick tail, waterproof brown fur, and sensitive whiskers. Its hands and feet have webbing between the toes.
• Tarantula — Blue Heron: Human-like body. Small ears covered in feathers, feathered wings on its arms, long, thin legs, and a narrow beak. It has bluish-gray feathers on its head and back.
• Giz — Raccoon: Human body. Rounded ears, ringed tail, gray fur, and a distinctive dark mask around the eyes. Its hands have long, agile fingers.
  Zatanna Zatara — Iberian lynx: Human body. Triangular ears with black tufts, short tail with a dark tip, beige fur with dark spots on cheeks and forearms, and feline eyes with vertical pupils.
  John Constantine — Crow: Human body, the crow fits his mysterious, cunning, and rather elusive personality. Black feathers on his forearms, small feathers around his ears, grayish eyes, and long fingers with dark nails.

A lush, cold, and extremely humid forest. Its trees reach great heights and are covered in moss, ferns, and lichens. Numerous streams crisscross the land, and rainfall is frequent. It features mountainous areas and natural clearings, as well as abundant wildlife.

Population:

• Oliver Queen — Bald Eagle: Human body. Small ears covered in white feathers, feathered wings on its arms, brown feathers on its back and shoulders, and curved talons. It has a short tail of white feathers.
• Dinah Lance — Puma: Human body. Rounded ears, long tail with a dark tip, beige fur, and small light spots on the face. Its claws are retractable, and its eyes have vertical pupils.
• Roy Harper — Red Fox: Human body. Orange triangular ears, thick tail with a white tip, reddish fur on cheeks and forearms, and small dark claws.
• Emiko Queen — Peregrine Falcon: Human body. Small ears with dark feathers, feathered wings on the forearms, tail of gray and black feathers and curved claws.
• Connor Hawke — Mule Deer: Human body. Large ears, branched antlers, short tail, and brown fur with light areas on the chest and abdomen.
• Mia Dearden — Raccoon: Human body. Rounded ears, ringed tail, dark mask around the eyes, and grayish fur on arms and legs.
• Onomatopoeia — Horned owl: Human body. Tufts of feathers on its head, large eyes, feathered wings on its arms, and curved talons. Its plumage is brown with dark spots.

Vast expanses of grass, wildflowers, and gentle hills. Trees are sparse and appear mainly near streams. The wind constantly sweeps across the plains. Swift animals, small burrowers, and birds of prey predominate.

Population:

• Barry Allen — American Pronghorn: Human body. Long ears, small black horns, short tail, and beige fur with white spots on the belly and rump. It has long legs and hooves.
• Iris West — Swift Fox: Human body. Large, pointed ears, long, abundant tail, reddish and cream fur, and a slightly elongated snout.
• Wally West — American Hare: Human body. Long ears, small tail, light brown fur, and long hind legs. He has tufts of lighter fur around his cheeks.
• Jay Garrick — American Bison: Human body. Small ears, dark brown fur, abundant mane on head and shoulders, short tail and curved horns.
• Jesse Quick — Gazelle: Human body. Thin ears, small horns, short tail, and golden fur with white areas on the chest and abdomen.
• Pied Piper — Striped Skunk: Human body. Small ears, very thick tail, black fur with white stripes and long claws on its hands.
• Captain Cold — Arctic wolf: Human body. Pointed ears, thick tail, grayish-white fur, visible fangs and dark claws.

A region of vast plains crisscrossed by rivers and streams. There are wet meadows, riparian forests, and shallow lagoons. During the rainy season, some areas become flooded. It is a fertile habitat, with an abundance of fish, waterfowl, and mammals that depend on the water.

Population:

• Bart Allen — American Hare: Human body. Long ears, small tail, light brown fur and muscular hind legs. He has light tufts on his cheeks.
• Max Mercury — Wild Horse: Human body. Equine ears, abundant mane, long tail with dark hair and brown coat. It has hooves instead of feet.
• Linda Park — River Otter: Human-like body. Small ears, thick, flexible tail, waterproof brown fur, and sensitive whiskers. Its hands and feet are webbed.
• Hunter Zolomon — Coyote: Human body. Large, pointed ears, thick tail with a dark tip, gray and beige fur, and an elongated snout.
• Weather Wizard — Osprey: Human body. Feathered wings on the arms, brown and white feathers, curved claws and a short feathered tail.
• Golden Glider — Swan: Human body. Ears covered in white feathers, feathered wings, neck with small feathers, and webbed feet.
• Mirror Master — Silver Fox: Human body. Pointed ears, thick silver-gray tail, dark fur on cheeks and forearms, and feline eyes.

An arid territory where the desert meets the ocean. It has cliffs, hardy scrubland, rocky beaches, and small patches of vegetation. The days are hot and the nights can be cold. Its inhabitants are adapted to the scarcity of water and the open terrain.

Population:

• Hal Jordan — Peregrine Falcon: Human body. Small ears covered in feathers, feathered wings on the arms, gray feathers on back and shoulders, and curved talons.
• John Stewart — Puma: Human body. Rounded ears, long tail with a dark tip, beige fur, and feline eyes. It has small light spots on its face and retractable claws.
• Guy Gardner — Coyote: Human body. Pointed ears, abundant tail, reddish and gray fur, elongated snout and visible fangs.
• Kyle Rayner — Desert Fox: Human body. Very large ears, thick tail with a dark tip and sandy fur. He has light tufts on his cheeks and small claws.
• Carol Ferris — Golden Eagle: Human body. Ears covered in feathers, feathered wings on the arms, dark feathered tail and curved talons.
• Sinestro — Golden Jackal: Human body. Large ears, elongated snout, thick tail and beige fur with reddish tones on back and limbs.
• Kilowog — Boar: Pointed ears, curved tusks protruding from the jaw, thick, rough skin, and a short tail.

A vast region of open prairies, fields of tall grass, and small wooded areas. The land is fertile and crisscrossed by freshwater streams. Trees are concentrated near waterways, forming natural shelters. Its inhabitants typically establish family territories and remain close to food sources. Predators roam the edges of the prairies, while herbivores congregate in open spaces.

Population:

• Jonathan Kent — African Elephant: Human-like body. Large ears, expressive trunk, small tusks, and gray skin. It has a long, thin tail, as well as visible folds on its neck, shoulders, and forearms.
• Martha Kent — White-tailed deer: Human body. It has elongated ears, small branched antlers, a short tail with a white underside, and light brown fur on its arms and nape.
• Pete Ross — Prairie Dog: Human body. His ears are small and rounded, he has visible incisors, a short tail, and sandy-colored fur on his cheeks and forearms.
• Chloe Sullivan — Red Fox: Human body. Has orange triangular ears, a long, thick tail with a white tip, reddish fur on the cheeks, and eyes with vertical pupils.
• Lana Lang — Black-tailed Hare: Human body. It has long ears with dark tips, a small tail, brown fur on arms and legs, and feet adapted for rapid movement.
• Whitney Fordman — Human body. Mustang horse: It has equine ears, a dark mane running along its neck, a long tail, brown fur on its arms and legs, and an athletic build.

A cold territory dominated by vast forests of pine, fir, and other conifers. Among the trees are lakes, streams, and clearings where cold-resistant vegetation thrives. Winters are long and typically blanket the ground in snow, while summers are brief. Animals adapted to these conditions use trees, caves, and rock shelters to protect themselves from the low temperatures.

Population:

• Carter Hall — Peregrine Falcon: Human-like body. It has wings covered in dark feathers, small feathers on its forearms, sharp eyes, a partially visible beak, and strong talons on its hands.
• Shayera Hol — Golden Eagle: Human body. It has golden feathers on its shoulders and forearms, wide wings, amber eyes, a curved beak, and dark, strong talons.
• Kendra Saunders — Snowy Owl: Human body. It has white feathers with small dark markings, yellow eyes, feathery tufts on its head, and wings that grow from its forearms.
• Katar Hol — Bald Eagle: Human body. It has white feathers on its head, brown plumage on its arms and back, a yellow beak, and curved talons. Its gaze is especially sharp.
• Animal Man — Gray Wolf: Human body. It has pointed ears, a thick tail, gray fur on the forearms and nape of the neck, visible fangs, and lupine-like eyes.
• Adam Strange — Caribou: Human body. It has branched antlers, elongated ears, thick fur on the neck and shoulders, and small light markings on the forearms.

A region of forested mountains, deep valleys, and rocky slopes. The vegetation changes with altitude: broadleaf trees predominate in the lower areas, while conifers thrive at the cooler elevations. Numerous streams cascade down the slopes, forming small lakes. Caves and rocky outcrops provide natural shelters.

Population:

• Billy Batson — Mountain Goat: Human body. He has curved horns, elongated ears, horizontal pupils, and brown fur on his forearms. His legs are strong, and his feet have hooves.
• Mary Bromfield — White-tailed deer: Human body. It has large ears, small antlers, a short tail with a light underside, and soft brown fur on the cheeks and arms.
• Freddy Freeman — Gray Fox: Human body. He has pointed ears, a long tail with a dark stripe, gray fur on his cheeks and forearms, and small, sharp claws.
• Black Adam — Barbary Lion: Human body. He has a dark and abundant mane around his neck, rounded ears, a long tail with a black tuft, and pronounced fangs.
• Tawky Tawny — Bengal Tiger: Human body. It has rounded ears, a long ringed tail, orange fur with black stripes on its arms and back, and feline fangs.
• Doctor Sivana — European Badger: Human body. It has small ears, a face with dark and light stripes, grayish fur on shoulders and forearms, and strong claws for digging.

A region of rocky hills, holm oak and cork oak forests, scrubland, and sunny clearings. Summers are hot and dry, while winters are mild and bring rain that renews the vegetation. Caves, hollow tree trunks, and stony ground abound. Its inhabitants take advantage of the shade during the hottest hours and seek water in streams and springs.

Population:

• Ted Knight — Eagle Owl: Human body. It has large amber eyes, tufts of feathers on its head, brown plumage on its shoulders and forearms, and strong, curved talons.
• Jack Knight — Red Fox: Human body. It has orange ears, a long, thick tail with a white tip, reddish fur on the cheeks and forearms, and eyes with vertical pupils.
• David Knight — Iberian lynx: Human body. It has pointed ears with black tufts, a short tail, mottled fur on arms and cheeks, and feline eyes with vertical pupils.
• Pat Dugan — Brown Bear: Human body. It has rounded ears, abundant brown fur on shoulders and arms, thick claws, and a stocky build.
• Shade — Crow: Human body. It has black feathers on its shoulders and forearms, dark eyes, small feathers around its ears, and long fingers with tough nails.
• Mist — Wildcat: Human body. It has triangular ears with small tufts, a medium-sized tail with dark rings, mottled fur, and retractable claws.

A vast expanse of dry land, low hills, and grasslands resilient to drought. Vegetation is sparse, and trees grow mainly near small watercourses. The wind travels great distances with little resistance. Temperatures fluctuate considerably between seasons, so many animals use burrows, crevices, and underground shelters for protection.

Population:

• Vic Sage — Coyote: Human body. He has large, pointed ears, a thick tail with a dark tip, grayish fur on his cheeks and forearms, and thin, visible fangs.
• Myra Fermin — Saiga antelope: Human body. It has elongated ears, a slightly prominent nose, small horns, and beige fur on its arms and nape.
• Lady Shiva — Snow Leopard: Human body. She has rounded ears, a very long and thick tail, gray fur with dark spots, and feline eyes with vertical pupils.
• Richard Dragon — Golden Eagle: Human body. It has golden feathers on its shoulders and forearms, sharp eyes, a partially visible beak, and curved talons on its hands.
• Izzy O'Toole — European Badger: Human body. Has small ears, dark and light markings on the face, gray fur on the arms, and strong claws adapted for digging.
• Tot — Little Owl: Human-like body. It has small tufts of feathers on its head, large eyes, brown plumage on its shoulders and forearms, and sharp talons.

A vast island surrounded by warm waters, with beaches, cliffs, dense rainforests, waterfalls, and verdant mountains. Tropical rains feed numerous rivers and keep the interior humid year-round. The coast offers open spaces, while the island's heartland is made up of thick forests and rugged terrain. Its wildlife is abundant and diverse.

Population:

• Diana — Golden Eagle: Human body. It has golden feathers on its shoulders and forearms, broad wings, amber eyes, a partially visible beak, and strong, curved talons.
• Hippolyta — Lioness: Human body. She has rounded ears, a long tail with a dark tuft, golden fur on her arms and neck, and pronounced fangs.
• Antiope — Jaguar: Human body. It has small ears, a long tail, golden fur with black spots on its arms and back, and retractable claws.
• Artemis — Bengal Tiger: Human body. It has rounded ears, a ringed tail, orange fur with black stripes on its arms and shoulders, and visible fangs.
• Nubia — Black Panther: Human body. It has small ears, a long, flexible tail, black fur on its cheeks and limbs, feline eyes, and retractable claws.
• Donna Troy — Human body. White-tailed deer: Has elongated ears, small antlers, a short tail with a white underside, and light brown fur on arms and nape.
• Philippus — Black rhinoceros: Human body. It has large ears, a prominent horn, grayish and thick skin on its arms and neck, and a particularly robust build.

A vast underwater ecosystem comprised of reefs, kelp forests, caverns, and deep ocean trenches. Light diminishes with increasing depth, and ocean currents determine the movements of many species. There are warm, bright zones near the surface, as well as cold, dark regions in the depths. Its inhabitants are adapted to life underwater.

Population:

• Arthur Curry — Great White Shark: Human body. It has dorsal and pectoral fins, grayish skin on shoulders and back, visible triangular teeth, and a strong tail adapted for swimming.
• Mera — Manta Ray: Human body. It has small lateral fins, smooth skin, dark markings on its arms and back, and a long, flexible tail.
• Orm — Tiger Shark: Human body. It has dorsal fins, gray skin with dark stripes, sharp teeth, and a muscular tail. Its eyes have a predatory appearance.
• Garth — Bottlenose Dolphin: Human-like body. It has a dorsal fin, smooth gray skin, light markings on its cheeks, and a horizontal tail that allows it to move quickly.
• Tula — Sea turtle: Human body. It has small shell plates on its shoulders and back, scaly skin on its arms, large eyes, and hands with fingers partially joined by membranes.
• Dolphin — Pink Dolphin: Human-like body. It has pink skin, small fins on its forearms, a dorsal fin, and a horizontal tail. Its eyes are large and expressive.
• Black Manta — Orca: Human-like body. It has black and white markings on its shoulders and torso, a dorsal fin, smooth skin, and a strong tail. Its eyes are dark.

A mountainous region of high elevations, alpine forests, cliffs, and snow-covered valleys. The air becomes colder and thinner with increasing altitude. The slopes feature narrow paths, rocky terrain, and areas of hardy vegetation. Its inhabitants take refuge in caves, crevices, and forests sheltered from the wind, and are accustomed to traversing steep inclines.

Population:

• Ra's al Ghul — Snow Leopard: Human body. He has rounded ears, a long, thick tail, gray fur with dark spots on his arms and cheeks, and feline eyes with vertical pupils.
• Talia al Ghul — Black Panther: Human body. She has small ears, a long, flexible tail, black fur on her shoulders and limbs, feline eyes, and retractable claws.
• Nyssa Raatko — Eurasian lynx: Human-like body. It has triangular ears with black tufts, a short tail, mottled fur on its arms and cheeks, and eyes with vertical pupils.
• Ubu — Brown Bear: Human body. It has rounded ears, abundant brown fur on shoulders and arms, thick claws and a stocky build.
• Sensei — Yak: Human body. It has curved horns, small ears, long dark fur on shoulders and back, and a robust build adapted to the cold.
• Onyx — Black Leopard: Human body. It has rounded ears, a long tail, dark fur on its arms and back, and feline eyes. Its movements are silent and agile.

An arid region of dunes, rocky mountains, canyons, and isolated oases. Vegetation is concentrated around water sources, while large expanses of land remain exposed to the sun. Temperatures are extreme during the day and drop considerably at night. Many animals seek refuge among the rocks or remain underground during the hottest hours.

Population:

• Black Adam — Barbary Lion: Human body. He has a dark, abundant mane around his neck, rounded ears, a long tail with a black tuft, and pronounced fangs.
• Adrianna Tomaz — Dorcas gazelle: Human-like body. It has thin, curved horns, elongated ears, a small tail, and sandy-colored fur on its arms, cheeks, and nape.
• Amon — Fennec: It has huge ears, a thick tail with a dark tip, light beige fur on cheeks and forearms, and large eyes adapted to the dark.
• Isis — Egyptian Cobra: Human body. It has dark scales on its arms and neck, eyes with vertical pupils, and a hood that it can unfurl around the back of its neck.
• Doctor Fate — Saker Falcon: Human body. It has brown feathers on its shoulders and forearms, sharp eyes, a partially visible beak, and curved claws on its hands.
• Sabbac — Striped hyena: Human body. It has rounded ears, abundant mane on the nape and back, a short tail with dark stripes, and grayish fur.

A region of ancient forests, low mountains, verdant valleys, and cool rivers. The trees are tall and abundant, with areas of dense vegetation and natural clearings. The climate has distinct seasons: summers are mild, and winters can be harsh. Caves and rock formations offer shelter, while the valleys are home to much of the wildlife.

Population:

• Brion Markov — Brown Bear: Human body. It has rounded ears, abundant brown fur on shoulders and arms, thick claws, and a stocky build.
• Tara Markov — Eurasian lynx: Human body. It has triangular ears with black tufts, a short tail, spotted fur on arms and cheeks, and feline eyes.
• Gregor Markov — Gray Wolf: Human body. It has pointed ears, a thick tail, gray fur on the nape of the neck and forearms, visible fangs, and lupine-like eyes.
• Helga Jace — Eagle Owl: Human body. It has large eyes, tufts of feathers on its head, brown plumage on its shoulders and forearms, and strong, curved talons.
• Looker — Albino deer: Human body. It has elongated ears, small antlers, white fur on its arms and nape, light eyes, and a short tail with a pale underside.
• Geo-Force — Golden Eagle: Human body. It has golden feathers on its shoulders and forearms, amber eyes, a partially visible beak, and dark, strong talons.

A territory of rocky plateaus, small dunes, scrubland, and expanses of dry land. Unlike the most extreme deserts, it retains areas of scattered grasslands and hardy vegetation. Rainfall is scarce and irregular, so animals travel great distances in search of water and food. Cracks in the ground and underground shelters offer protection from the heat.

Population:

• Rustam — Golden Jackal: Human body. It has pointed ears, a thick tail with a dark tip, golden fur on its cheeks and forearms, and thin, visible fangs.
• Jihad — Spotted Hyena: Human body. It has rounded ears, a strong jaw, yellowish fur with dark spots on its arms and back, and a short tail.
• Djinn — Desert Scorpion: Human body. It has small dark plates on its shoulders and back, pincer-like fingers, and a segmented tail that grows from the lower part of its back.
• Cheshire Cat — Sand Cat: Human body. It has large ears, a long tail with dark rings, light beige fur on its cheeks and arms, and eyes with vertical pupils.
• Onslaught — Griffon Vulture: Human-like body. It has dark feathers on its shoulders and forearms, a partially feathered neck, a curved beak, and strong talons.
• Ishmael — Horned viper: Human body. It has scales on its arms and neck, small bumps above its eyes, vertical pupils, and a forked tongue.

General information

• World name: HybridVerse.
• Era: Present day, equivalent to the 21st century.
• Technology: There is no conventional human technology or urban infrastructure. Life develops in natural environments.
• Language: Hybrids use spoken and written language, as well as gestures, sounds, and body signals typical of their species.
• Organization: There are families, packs, clans, communities, and individual territories.
• Movement: Inhabitants can travel freely between habitats, although distances and natural conditions may make it difficult.
• Diet: It depends on the species. Hybrids do not hunt or consume other hybrids.
• Time: Days last 24 hours and years follow a 12-month calendar.
• Seasons: Spring, summer, autumn and winter, with variations depending on the habitat.

Nature and coexistence

This world is inhabited by humanoid hybrids that combine human and animal characteristics. They possess intelligence, reasoning, and communication skills, but retain the instincts, behaviors, and biological needs of their respective species.

Hybrids do not feed on other hybrids. Regardless of their species, they are sentient beings and are not part of the food chain. Their diet depends on their nature: carnivores hunt wild animals, including fish, while herbivores consume vegetation, and omnivores maintain varied diets. There are also completely pure animals, without humanoid characteristics, that are part of the natural fauna.

However, this does not mean that all species coexist harmoniously. Territorial instincts, predator-prey rivalry, competition for resources, and natural differences still exist. A wolf hybrid may not tolerate a bear hybrid, nor may a herbivore feel safe near a predator. They may experience distrust, hostility, fear, or rivalry even without prior knowledge of each other.

Each species maintains its own customs, hierarchies, forms of organization, diet, and behavior. Some live in herds, others in groups, families, or alone.

The world is divided into distinct natural habitats, each with its own ecosystems, species, and conditions. Their inhabitants can move and visit other habitats, although the differences between species and their instincts never disappear.