Explore clear, practical articles about animals and the way they live.
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 poisonous crabs that can contain tetrodotoxin, saxitoxin and other marine toxins, including devil reef crabs, mosaic crabs and toxic Demania species.
Meet 10 weird-looking monkeys with unusual faces, noses, fur and colors, from bald uakaris and proboscis monkeys to pied tamarins and doucs.
Discover 10 of the most resilient animals, from tardigrades and wood frogs to camels and lungfish, and the science behind how they survive extreme conditions.
Horseshoe crabs, octopuses, squid, cuttlefish and other animals can have blue blood. Learn how copper-based hemocyanin makes it blue.
What animal has the strongest armor? Compare the crush-resistant ironclad beetle with armadillos, pangolins and turtle shells—and see why there is no single universal winner.
Which animal can survive the longest without food? Discover tardigrades, soft ticks, lungfish, olms, bears and other animals built for extreme fasting.
Discover 7 beautiful swans, including Mute, Black, Black-necked, Trumpeter, Whooper and Tundra Swans, with identification tips, ranges and key differences.
Discover 10 poisonous butterflies, including monarchs, pipevine swallowtails and Atala butterflies, plus their toxins and whether they can harm humans.
Musk ox guard hairs can grow up to about 60 cm long. Learn why their coat is so long, what qiviut is, and whether musk oxen truly hold the animal hair record.