Big-terrier brains, curly-coat charm Tailless thinkers of the treetops Amethystine Python (Scrub Python) Island giant with an amethyst glow Aesculapian Snake The healer's serpent of Europe Karoo's pre-dinosaur apex hunter American Water Spaniel Small boat dog, big water drive Blue crown, bold mind, busy feet Banded Palm Civet Striped shadow of the rainforest floor Built for the blue-water marathon Crustaceans that live like living glue Bernese Shepherd Swiss strength, family gentleness. Blue Nose Pit Bull Blue coat, big heart, built to work. Corman Shepherd Big-dog brains, short-dog swagger California Kingsnake The striped hunter of the West One cat. Two continents. Fluff of a Chow, heart of a Shepherd Chestnut-Sided Warbler Chestnut flanks, shrubland singer Chinese Crested Dog Crested charm, big-heart companion. Webbed feet, world travelers. Born in water, ruler of the air Discus: the Amazon's living discus Small body, fearless heart. Dandie Dinmont Terrier Topknot, grit, and Scottish wit Not a pig-just terrifying teeth. Eel-shaped, spine-armed, reef-to-river English Longhorn Cattle Forward horns, old Britain's beef Eastern Brown Snake Australia's swift rodent-hunting elapid Tiny bird, huge attitude. Black-tail hunter, winter-white Eastern Coral Snake Bright bands, hidden life, serious venom Florida's broad-snouted living fossil Florida's scrubland burrow mouse Fer-de-lance Snake Heat-sensing ambush, heavy-hitting venom Not a lemur-nature's glide master All hood, no cobra Small bees, big pollination power The clam that runs on sunlight. Goliath Tigerfish Teeth like knives, built for rapids Goliath Grouper Mangroves to wrecks-Atlantic giant Tiny body, griffon grit, Yorkie sass. Giant Schnoodle Big brain, bigger beard energy Gigantopithecus Big teeth, big questions The wasp-nest excavator of Europe Born to run, built to endure. Tiny mix, big heart companion. Small fish, huge impact. Spines, stealth, and ants for dinner. Harbor Porpoise Small porpoise, big sonar. Indian Elephant One trunk-many forests sustained Indian Palm Squirrel Three stripes. Big city attitude. Loop, look like a twig, and live on leaves Born to run, bred to point. Italian Greyhound Velvet sprinter, lap-sized legend Indigo: the longleaf's top hunter Japanese Macaque Japan's snow monkey, social to the core Desert jumpers on spring-loaded legs Josephoartigasia monesi Uruguay's titan rodent Big eye, snap-mouth, seabed hunter Golden web, giant female, tiny male Jamaica's Night-Hunting Yellow Boa Kelp forests' colorful egg-guarder Crown of the Arctic pack ice The corded guardian of the flock Kirtland's Snake Red-bellied ghost of wet prairies Killer Clown Ball Python Bright, bold, and built to curl. Small quail, big color. Spotted sprinters of the desert Lemurs: Madagascar's primate marvels Lion look, gentle heart. Spotted guardians of gardens Lappet-faced Vulture Big bill. Bare face. Nature's cleanup boss. Lancashire Heeler Tiny drover, big worker. Madagascar's forward-toothed hunter Moscow Watchdog Big heart. Bigger guardian. Mountain Gorilla Highland giants, guarded by a silverback Wings of the sea, built to filter More than night flyers

Maremma Sheepdog White guardian of the flock. Warm water, wrong way-protect your nose Ancient shell, living navigator. Night hunter with a black-crowned cap Orange teeth, big impact on wetlands Tail-powered hunter of Africa's waters Norwegian Buhund Nordic farm dog with a big voice The dragon's "baby" of the karst Two toes. One mission: outrun. Tiny shells, huge history Orchid Dottyback Small purple fish, big reef attitude Pumpkin-colored master of the orb Eight arms, endless ingenuity Miocene runner with a can-opener beak Crop-milk champions of the skies Pink Fairy Armadillo The pink "sand-swimmer" of Argentina Pumpkin Patch Tarantula Small spider, big pumpkin vibes Corded coat, quick mind, true herder Peringuey's Adder The dune viper that vanishes in sand Camouflage, coveys, and quick takeoff Spotted night hunters of Australasia Quetzalcoatlus northropi Largest skies, long-necked hunter Small kangaroo, big island icon Jewel of the Mesoamerican cloud forest Quahog: the buried filter-feeder Red-winged blackbird Flash the red-rule the marsh South America's sprinting ratites Bamboo climber of the cloud forests Wetland racer with ribbon stripes Built for rivers, born to slide Red Ackie Monitor Small goanna, big attitude-spiny tail! Sidewind the sand. Rattle the warning. Built to glide, strike, and swallow Wrinkles that breathe the Andes Front fangs, fast venom, fierce defense All legs, no land-meet Pycnogonida Brainy athlete in a fluffy suit Tomato Hornworm From tomato terror to night-flying pollinator Thylacoleo carnifex Australia's "lion" with a marsupial bite Wolf look, dog heart. Sky-sleek hunter of wetland air Big spiders, quiet ambush masters Many forms, one Malagasy family Wolf look, family heart Urechis unicinctus (Penis Fish) The mudflat innkeeper with a mucus net The voice of Japan's early spring Uromastyx (Spiny-Tailed Lizard) Spiny tails, desert scales, plant power. Uinta Ground Squirrel Whistle, burrow, hibernate-repeat. Ulysses Butterfly Electric blue over rainforest edges Deep-sea drifter, marine-snow harvester Annapolis Valley's compact powerhouse Armored snail of the iron vents Looks like a viper, hugs like a boa. Small bite, big biology. Volpino Italiano Tiny fox look, big watchdog heart Packs, howls, and healthy wildlands Big herding heart, low ride. The woodpecker that plays snake Western Green Mamba Green lightning in the West African trees White-shouldered House Moth White shoulders, brown wings, indoor drifter Rare coat, real Bengal tiger Small bones, big uncertainty Xingu River Ray Rio Xingu's Black Diamond Stingray A "before-the-tyrants" tyrannosauroid Xenotarsosaurus Patagonia's "strange-ankled" hunter The head-spined hunters of Pangea Ancient guardian, modern cuddle heater Yellow-faced Bee Masked bees, hidden pollen power Big attitude, tiny package Burrow. Endure. Thrive. Yellowjacket (Yellow Jacket) Paper nests, sharp teamwork, bold stripes Yellow Anaconda Paraguay-Paraná's stealthy giant Yellow fins, ocean miles Striped minnow, giant science impact Zebra Tarantula Zebra legs, burrow boss Clean, Drain, Dry-Stop Zebra Mussels Half stripes, full attitude Small finch, big lessons in song Striped youth, spotted adulthood Thank you for reading! Have some feedback for us? Thank you for your feedback! We appreciate your help in improving our content. Our editorial team will review your suggestions and make any necessary updates. There was an error submitting your feedback. Please try again.