Mammals

Scientifically-speaking there are 11 mammal groups, and most Mammals are warm-blooded, have body hair, give live birth and nurse their young with milk from mammary glands. Check out these articles about all kinds of mammals.

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If you've ever wondered, "Are whales mammals?" the answer is a resounding yes. Despite their fish-like appearance, whales belong to the order Cetacea and share many features with other mammals. From breathing air to nursing their young, these marine giants check every mammalian box.

By Nico Avelle

Few phenomena are as strange, grotesque and captivating as the rat king — a creature that has fascinated and unsettled people for centuries.

By Nico Avelle

Lions, one of the most iconic big cats in the animal kingdom, belong to the species Panthera leo, but not all lions are the same. There are several recognized subspecies, each adapted to a specific region and environmental conditions.

By Nico Avelle

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If you're catching whiffs of something funky near your porch, you might be wondering, "What do skunks eat?" These black-and-white foragers are best known for their defensive skunk spray, but their feeding habits are just as distinctive.

By Nico Avelle

Massive, majestic and deeply woven into the fabric of North American history, the bison is more than just an iconic mammal; it's a symbol of survival and conservation.

By Nico Avelle

What do raccoons eat when they’re rummaging around at night like masked bandits?

By Nico Avelle

Found swinging through the canopies of tropical forests or foraging on the forest floor, the many types of monkeys are split into two main groups: Old World monkeys and New World monkeys. These primate species differ in habitat, behavior and physical traits, from prehensile tails to colorful facial features.

By Nico Avelle

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If you've ever watched a nature documentary, you might have found yourself asking, what do lions eat? These majestic big cats, known scientifically as Panthera leo, are obligate carnivores that rely entirely on meat to survive.

By Nico Avelle

If you've ever stood on a farm and wondered about the ox vs. bull debate, you're not alone. These two male bovine animals might look similar, but there's a key difference that sets them apart.

By Nico Avelle

If you've ever driven past a farm and wondered about ox vs. cow differences, you're tapping into a classic question in animal science.

By Nico Avelle

You’ve seen them pop up on Groundhog Day, predicting six more weeks of winter or the coming of spring. But what do groundhogs eat?

By Ada Tseng

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You might think that all aquatic otters must be the same. But did you know that there are major river otter vs. sea otter differences?

By Ada Tseng

In the vast wilds of southern Africa, one of the fiercest hunters is also one of the tiniest. Meet the black-footed cat, also known as Felis nigripes. This small spotted cat may look like a house pet, but its stocky body, short tail and stealthy hunting skills place it among the most formidable of the wild cats.

By Nico Avelle

What do deer eat? If you've ever spotted a deer nibbling on leaves or wandering through a meadow, you might have wondered about preferred deer foods. The answer depends on the season, the environment and even the specific species of deer.

By Nico Avelle

Foxes live in a wide range of environments, from rural areas to urban spaces and their eating habits reflect this adaptability. So, what do foxes eat when they’re in the wild versus when they’re sneaking around urban areas?

By Mack Hayden

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These furry, acrobatic foragers can be found leaping through trees, raiding gardens, and even showing up at your squirrel feeder. But what do squirrels eat in the wild versus in urban areas?

By Mack Hayden

Giant pandas are basically the ultimate bamboo-eating machines. But what do pandas eat besides this crunchy green staple?

By Mack Hayden

The Bengal tiger is one of the biggest wild cats on the planet. It's also a popular tiger in pop culture. Shere Khan from "The Jungle Book," Rajah as Jasmine's pet tiger in "Aladdin" and Richard Parker from "Life of Pi" — they're all Bengal tigers!

By Ada Tseng

Rats are nature’s ultimate survivors. But what do rats eat? These highly adaptable rodents will chow down on just about anything they can find, from meat scraps to fruit trees.

By Yara Simón

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Camels: nature’s ultimate desert survivors! But what do camels eat? These incredible animals have adapted to eat some of the toughest, driest and least appetizing plants on Earth. From thorny plants to salty plants, camels manipulate their environment to get the nutrients they need.

By Mack Hayden

When it comes to massive, powerful bears, one showdown often comes to mind: polar bear vs. grizzly bear! These two bear species may look similar, but they have distinct differences in habitat, behavior and even diet. So, what happens when these giants of the animal kingdom cross paths?

By Talon Homer

When it comes to spiky animals, hedgehog vs. porcupine species seem easy to confuse on paper. At first glance, they seem similar, both covered in sharp quills that help them defend against predators.

By Ada Tseng

When it comes to wild canines, coyote vs. fox identification can be tricky. At first glance, both coyotes and foxes may look similar with their bushy tails and pointed ears. But these two animals have plenty of key differences, including size, behavior, habitat and even how they hunt.

By Mack Hayden

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Elk vs. moose comparisons are a lot easier to make when you realize that two of the largest members of the deer family differ significantly in size, behavior and appearance.

By Talon Homer

An adult horse should typically eat about 1.5 to 2 percent of its body weight in food each day. This means a 1,000-pound (454-kilogram) horse may eat 15 to 20 pounds (6.8 to 9 kilograms) of hay and grass daily.

By Ada Tseng