
10 of the Most Dangerous Sea Creatures in the World
Discover 10 dangerous sea creatures, from box jellyfish and stonefish to blue-ringed octopuses, sea snakes and sharks, and learn what makes each risky.
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Discover 10 dangerous sea creatures, from box jellyfish and stonefish to blue-ringed octopuses, sea snakes and sharks, and learn what makes each risky.

A baby horse is called a foal. Learn the difference between a foal, colt, filly, yearling and weanling, plus the names for adult male and female horses.

A group of pandas is commonly called an embarrassment. Learn why the name is unusual, whether pandas actually live in groups, and what baby pandas are called.

How big is a bobcat compared with a house cat? Compare weight, height, body shape, paws, tails and other easy ways to tell them apart.

Do all cats purr? Most domestic cats can purr, but some rarely do. Learn why cats purr, why some are quiet and which wild cats can purr.

Meet 8 small wild cats, from the rusty-spotted cat and black-footed cat to sand cats, margays and Pallas’s cats, with size, habitat and traits.

Coyotes, bobcats, owls and other predators can sometimes prey on outdoor cats. Learn which animals pose real risks and how to keep cats safer.

What is the strongest big cat? Compare tigers, jaguars, lions and leopards by body size, bite strength, lifting ability and hunting power.

Meet Leopardus tilcayo, a newly described wild cat from Bolivia’s Yungas cloud forest. Learn its size, appearance, discovery, habitat and conservation concerns.

What animal has the best memory? Compare dolphins, elephants, bonobos, crows and other animals by long-term, social, spatial and episodic-like memory.

Which animal is the king of animals? The lion is the traditional answer, but tigers, orcas, polar bears and other species dominate different habitats.

Which animals are the most sexually active? Compare bonobos, lions, cats, dolphins, macaques and more, and learn why animal “sex drive” cannot be ranked by one number.

What eats zebras in the savanna? Lions and hyenas hunt adults, while crocodiles, wild dogs, leopards and cheetahs target vulnerable zebras and foals.

Where are orca eyes? The real eyes are small, dark, and just below and in front of the white eye patch. See their exact location, color and vision.

Meet 10 of the cutest monkeys in the world, from pygmy marmosets and tamarins to snub-nosed monkeys, with habitats, traits and conservation facts.

Why did Sacabambaspis go extinct? Fossils show a local mass-death event in Bolivia, but the true cause of the genus’s extinction remains uncertain.

Searching for gembok? The correct spelling is gemsbok. Learn Oryx gazella size, habitat, diet, horns, desert adaptations, predators and conservation status.

Which bats pose the greatest risks to humans? Explore 10 bats linked to rabies, Nipah, Marburg and other health risks, plus what to do after bat contact.