Animals
Tiger Shark
A guide to the tiger shark: its size, worldwide range, wildly varied diet, teeth, reproduction, danger to humans, and conservation status.
Malayan Tiger
The Malayan tiger is one of the world's rarest big cats, with fewer than 150 left in the rainforests of Peninsular Malaysia. Learn what threatens it.
What Animals Live in the Pacific Ocean?
What animals live in the Pacific Ocean? Explore its whales, sharks, coral reefs, and deep-sea oddities, from the sunlit surface to the crushing abyss.
The First Ever Animals To Walk On Land
The first animals that walked on land were called tetrapods. It is believed that the first tetrapods walked the parts of our planet where Scotland is situated today.
Tasmanian Devil
The Tasmanian devil is the world's largest carnivorous marsupial, found only in Tasmania. A look at its size, diet, behavior, and endangered status.
Who Were the Early European Modern Humans?
Early European modern humans were among the first Homo sapiens in Ice Age Europe, leaving behind fossils, tools, and genetic clues to their past.
Yellow Anaconda
Meet the yellow anaconda, the green anaconda's smaller golden cousin. A guide to this South American water boa's size, habitat, diet, and behavior.
Tasmanian Tiger
The Tasmanian tiger is an extinct carnivorous marsupial species native to Australia. It lived in Tasmania until European settlement.
Carpet Python
Carpet pythons are among the most variable pythons, with six recognized subspecies, diverse color patterns, and adaptations to a wide range of habitats.
Why Alligators Only Live In Two Places On Earth
Alligators live in just two places on Earth, the US and China, and the reason goes back 33 million years. Discover the deep history behind their strange range.
Giant Panda
Explore the life of the giant panda, including its habitat, diet, behavior, reproduction, conservation success, and future threats.
Electric Eel
Learn how electric eels use powerful shocks, electroreception, and air breathing to hunt, navigate, and survive in South America’s waters.
Goliath Tigerfish
With razor-sharp teeth and a powerful bite, the goliath tigerfish is one of Africa's most formidable freshwater predators.
Black Rhino
Learn about the black rhino's habitat, diet, behavior, conservation status, and recovery efforts for one of Africa's most endangered mammals.
Arctic Wolf
The arctic wolf can withstand extreme freezing temperatures and harsh environments, making them a unique subspecies of wolf.
Sidewinder
Learn about the sidewinder rattlesnake's habitat, diet, behavior, venom, reproduction, and unique sidewinding movement.
Native Fish of the United States of America
The USA is home to a wide range of native fish species, each playing a key role in ecosystems and local cuisine across the country. Full table included.
Beaked Sea Snake
Beaked sea snakes move through muddy Indo-Pacific shallows, using potent venom, a hooked snout, and a paddle tail to hunt coastal fish with precision.
Boa Constrictor
Boa constrictors are powerful live-bearing snakes with complex taxonomy, diverse habitats, and key roles in wild ecosystems.
Coral Snake
Explore the world of coral snakes, from their vivid coloration and venom to their habitat, diet, behavior, and conservation.
Indian Rhino
The Indian rhinoceros, once near extinction, is now listed as Vulnerable by the IUCN and has recovered to about 4,075 individuals in India, Nepal, and Bhutan.
The 9 Most Venomous Snakes In The United States
The four main categories of potent strikers in the United States are rattlesnakes, cottonmouths, copperheads, and coral snakes.
Invasive Species In The Florida Everglades
These invasive species in the Everglades have come from all over the world, causing many issues for the local flora and fauna in Florida.
The Most Snake Infested Lakes in Maine
Although Maine is not the most snake-infested state in the United States, there are still lakes that are the ideal habitat for local species.
The 6 Most Snake Infested Lakes in the US
Some US lakes teem with water snakes, and a few with venomous ones. Discover the most snake-infested lakes in the country and what's lurking near shore
The Most Wolf-Dense Regions in the United States
Gray wolves in the U.S. are concentrated in four regions: the Great Lakes, Northern Rockies, Pacific Northwest, and Alaska, with about 19,000 wolves today.
Endemic Birds Of The United States
America has bird species found within its borders and nowhere else. Discover the country's endemic birds and why so many cling to shrinking habitats.
Tiger Snake
Tiger snakes are a species native to Australia and Tasmania. They can grow up to six feet long and possess highly poisonous venom.
Wildebeest
The wildebeest is an animal that is native to the African Savanna and a part of a profound journey known as the Great Migration.
Hognose Snake
Hognose snakes are unique, nonvenomous reptiles with specialized adaptations, such as upturned snouts and dramatic defensive behaviors.
Asian Elephant
Asian elephants are the second-largest land mammal in the world (after their African counterparts), and they are highly social and intelligent.
Freshwater Crocodile
Discover the freshwater crocodile, Australia's shy river-dwelling reptile, from its habitat and diet to its behavior, threats, and ecological importance.
The Most Predator-Dense Ecosystems in North America
Predator-dense landscapes in North America range from the Arctic tundra, dense with polar bears, to the Florida Everglades, replete with alligators and snakes.
The Most Biodiverse Forests in the United States
Many US forests harbor vast biodiversity, including the Great Smoky Mountains and Oregon-California mountain ranges, but they face significant threats.
The Most Shark-Infested Coastlines in the United States
Discover the most shark-populated coastlines in the United States, from Florida to Hawaii, and learn where sharks thrive and migrate.
Humpback Whale
Explore the world of humpback whales, including their behavior, migration, diet, reproduction, and role in ocean health.
Black Mamba
The black mamba is Africa's longest venomous snake, known for its speed, potent venom, unique behavior, and important ecological role.