Least Concern Species

Orycteropus afer

The aardvark is a nocturnal, burrowing mammal found across sub-Saharan Africa, best known for its long snout and powerful digging claws used to raid termite mounds.

Lithobates catesbeianus

The American bullfrog is the largest true frog native to North America, named for its deep, resonant call that resembles a bull's bellow. Highly adaptable and voracious, it will eat almost any animal small enough to fit in its mouth, from insects to other frogs, and has become one of the world's most widely introduced invasive amphibians outside its native range.

Euphausia superba

Antarctic krill is a small, shrimp-like crustacean that forms the foundation of the entire Antarctic food web, supporting whales, seals, penguins, and countless fish species. Despite its tiny individual size, its total biomass is estimated to be one of the largest of any animal species on Earth, gathering in massive swarms that can stretch for kilometers and be seen from space.

Haliaeetus leucocephalus

The bald eagle is a large bird of prey and the national bird of the United States, typically found near large bodies of open water with an abundant fish supply, from Alaska and Canada down through the contiguous United States. The species was once endangered in the U.S. due to hunting, habitat loss, and the pesticide DDT, which thinned its eggshells and caused widespread breeding failures; after DDT was banned and decades of conservation effort, bald eagle populations recovered enough for the species to be removed from the U.S. endangered species list in 2007.

Basiliscus basiliscus

The basilisk lizard, nicknamed the 'Jesus Christ lizard,' is famous for its remarkable ability to run upright across the surface of water for short distances without sinking. Native to the rainforests of Central and northern South America, it relies on this unusual skill primarily to escape predators.

Hapalochlaena lunulata

The blue-ringed octopus is one of the most venomous marine animals in the world despite being barely larger than a golf ball, found in tide pools and shallow reefs across the Indo-Pacific. Its venom contains tetrodotoxin, a toxin powerful enough to cause paralysis in humans, though the octopus itself is docile and only bites when directly provoked or handled.

Tursiops truncatus

The bottlenose dolphin is one of the most widely-recognized and intelligent marine mammals, found in temperate and tropical oceans worldwide.

Pygoscelis antarcticus

The chinstrap penguin is named for the narrow black band running under its chin, giving it the appearance of wearing a tiny helmet strap. Among the most numerous penguin species in the world, it breeds in enormous colonies across the Antarctic Peninsula and surrounding sub-Antarctic islands.

Amphiprion ocellaris

The clownfish is a small, brightly-colored reef fish famous for its symbiotic relationship with sea anemones, whose stinging tentacles it is immune to.

Octopus vulgaris

The common octopus is a remarkably intelligent, boneless marine invertebrate found in coastal waters worldwide, renowned for its problem-solving abilities and rapid camouflage.

Coturnix coturnix

The common quail is a small, secretive ground-dwelling bird that migrates annually between Europe, Africa, and Asia, more often heard than seen in dense grassland.

Desmodus rotundus

The common vampire bat is one of only three bat species that feeds exclusively on blood, mainly targeting livestock across Latin America under cover of darkness.

Vombatus ursinus

The common wombat is a stocky, burrowing marsupial native to Australia, known for digging some of the most extensive burrow systems of any animal its size. Despite its slow, waddling gait, it can sprint in short bursts when threatened and is a powerful, capable digger built like a small bulldozer.

Camelus dromedarius

The dromedary, or one-humped camel, is a large desert mammal domesticated thousands of years ago and superbly adapted to surviving extreme heat and long stretches without water.

Corallus caninus

The emerald tree boa is a non-venomous constrictor found in the rainforest canopy of the Amazon and Orinoco basins, spending nearly its entire life coiled in trees and rarely descending to the ground. It's a striking example of convergent evolution: the unrelated green tree python of New Guinea and Australia — a completely different snake family from a different part of the world — has evolved an almost identical bright green color, white markings, and coiling posture to fill a very similar ecological niche.

Dromaius novaehollandiae

The emu is the second-largest living bird in the world by height, a flightless giant native to the open plains and deserts of Australia. Despite being unable to fly, it's an exceptionally fast and powerful runner, capable of covering long distances across the outback in search of food and water.

Vulpes zerda

The fennec fox is the smallest fox species in the world, adapted to the extreme heat of the Sahara Desert with famously oversized ears.

Photinus pyralis

The firefly is a soft-bodied beetle famous for its ability to produce light through a chemical reaction in its abdomen, a phenomenon called bioluminescence used mainly to attract mates on warm summer evenings. Despite the name, it isn't a fly at all -- it's a beetle, most closely related to click beetles and other Coleoptera.

Canis lupus

The gray wolf is the largest wild member of the dog family, once ranging across nearly the entire Northern Hemisphere and living in tightly-coordinated family packs.

Phoenicopterus roseus

The greater flamingo is the largest and most widespread flamingo species, found wading in large flocks through shallow saline lakes and lagoons.

Eunectes murinus

The green anaconda is the heaviest snake species in the world, a massive non-venomous constrictor found in the swamps, rivers, and flooded grasslands of South America. Unlike many large snakes, it spends much of its time submerged in water, where its bulk is supported and it can ambush prey coming to drink.

Iguana iguana

The green iguana is a large arboreal lizard native to Central and South America, often found basking on branches overhanging rivers and streams.

Apis mellifera

The honeybee is a highly social insect essential to global agriculture, pollinating a huge share of the crops humans depend on while producing honey and wax.

Capra ibex

The Alpine ibex is a wild goat species famous for its massive, ridged, backward-curving horns and remarkable ability to scale near-vertical cliff faces in the mountains of the European Alps. Once hunted to near extinction, the entire modern population descends from a small group protected in a single Italian nature reserve in the 19th century.

Aepyceros melampus

The impala is a medium-sized antelope found across eastern and southern African savannas, famous for its explosive leaping ability when startled.

Pavo cristatus

The Indian peafowl, commonly called a peacock, is a large ground-dwelling bird native to South Asia, world-famous for the male's spectacular iridescent tail display.

Herpailurus yagouaroundi

The jaguarundi is a small, elusive wildcat found from South America through Central America, notable for a long, slender, weasel-like body unlike the more compact build of most wild cats. Despite living alongside the much larger jaguar across parts of its range, the two are only distantly related within the cat family.

Dacelo novaeguineae

The laughing kookaburra is the largest member of the kingfisher family, famous for a call that sounds remarkably like raucous human laughter, often used to establish territory at dawn and dusk. Native to eastern Australia, it's one of the country's most recognizable and culturally iconic birds.

Hydrurga leptonyx

The leopard seal is one of Antarctica's top predators, named for the dark spotted pattern across its pale coat and a fierce reputation to match. Unlike most seals, which primarily eat fish, the leopard seal is a formidable hunter capable of taking down penguins and even other seal species.

Suricata suricatta

The meerkat is a small, highly social mongoose relative native to the deserts and grasslands of southern Africa, famous for standing upright on its hind legs to scan the horizon for predators. Living in tightly bonded family groups called mobs, meerkats rely on constant cooperation and vigilance to survive in an environment full of danger from the air and ground alike.

Aurelia aurita

The moon jellyfish is one of the most common and widely-distributed jellyfish species, drifting through coastal waters worldwide in large seasonal blooms.

Crocodylus niloticus

The Nile crocodile is Africa's largest crocodilian and one of the continent's most feared apex predators, ambushing prey at the water's edge across rivers, lakes, and wetlands.

Mantis religiosa

The praying mantis is an ambush predator instantly recognizable by its front legs held together as if in prayer, folded and spiked for snatching prey in a lightning-fast strike. Its triangular head can rotate nearly 180 degrees, giving it an almost unmatched field of view among insects for spotting movement.

Pygocentrus nattereri

The red-bellied piranha is one of the most notorious freshwater fish in the world, native to rivers and floodplains across the Amazon and Orinoco basins in South America. Despite its fearsome reputation, it is primarily a scavenger and opportunistic feeder, and unprovoked attacks on humans are extremely rare.

Coccinella septempunctata

The seven-spot ladybird is one of the most recognizable beetles in the world, named for the seven black spots that mark its glossy red wing covers. Both adults and larvae are voracious predators of aphids, making the species a natural form of pest control long valued by farmers and gardeners.

Casuarius casuarius

The southern cassowary is one of the largest and most dangerous birds in the world, a flightless giant native to the tropical rainforests of northern Australia and New Guinea. Despite its bulk, it is an excellent swimmer and can sprint through dense forest at considerable speed, using a large bony helmet-like casque atop its head to push through thick vegetation.

Ambystoma tigrinum

The tiger salamander is one of the largest land-dwelling salamanders in North America, named for the yellow or olive blotches and stripes marking its dark body. Most of its life is spent hidden underground in burrows, either ones it digs itself or ones abandoned by other animals, only emerging at night or during its brief breeding season.

Ramphastos toco

The toco toucan is the largest toucan species, instantly recognizable by its enormous bright orange bill, native to the forests and savannas of South America.

Cathartes aura

The turkey vulture is a widespread scavenger found across the Americas, playing a critical ecological role by cleaning up carrion using one of the keenest senses of smell in the bird world.

Crotalus atrox

The western diamondback rattlesnake is one of the most dangerous and widely-distributed venomous snakes in North America, easily identified by the diamond pattern along its back.

Gulo gulo

The wolverine is the largest land-dwelling member of the weasel family, a solitary and famously tenacious predator and scavenger of far northern forests and tundra. Despite its bear-like appearance, it is much smaller than its reputation suggests, roughly the size of a medium dog, but is capable of driving much larger animals like wolves away from a carcass.

Pristella maxillaris

The X-ray tetra is a small freshwater fish native to slow-moving rivers and streams in South America, named for its almost completely transparent body that reveals its skeleton and internal organs. Its see-through appearance has made it one of the most recognizable and popular small fish in the freshwater aquarium hobby worldwide.

Xerus inauris

The Cape ground squirrel, or xerus, is a burrowing rodent of southern Africa's arid plains, easily recognized by holding its bushy tail overhead like a built-in parasol.

Marmota flaviventris

The yellow-bellied marmot is a large ground squirrel found in the mountains of western North America, spending nearly eight months of the year in deep hibernation.

Danio rerio

The zebra danio is a small freshwater fish native to streams and rice paddies across South Asia, named for the five uniform, horizontal blue stripes running along its silvery body. Beyond its popularity as an aquarium fish, it has become one of the most important model organisms in modern biological and medical research.