A male babirusa's canines are an evolutionary mystery: They never stop growing
The assassin bug's deadly proboscis is both sword and siphon. It uses its sharp nose to pierce and inject toxins into its victims
When winter comes, most bugs either migrate or time travel. But some get far more creative
While a great white shark's 300 serrated teeth are an amazing hunting adaptation, what's even more amazing is their replaceability
Well, it may not replace bees. But it's a fun project nonetheless
Hercules beetles, as their name suggests, are immensely strong for their size
After a hornet queen lays hundreds of eggs, her workers set about feeding the larvae chewed-up prey. With tiny waists, the workers can't digest solid food
Keepers admire them, but have no illusions. Pandas are solitary creatures
A scientist at Smithsonian's Tropical Research Institute helped catalog everything known about toxins in the skins of endangered frogs and toads
The hagfish is a slime-emitting ocean-dweller that's remained unchanged for 300 million years--and it shows. It has a skull (but no spine)
Thanks to a local anesthetic in their spit, vampire bats are able to drink blood from their prey without being detected
The echidna, or spiny anteater, is a marvel of defensive self-preservation, from its impenetrable spikes to its ability to breathe through bushfires
Investigating frog tongues—and some human ones!—in the name of science
Coconut octopuses are among the most intelligent invertebrates around: They use tools, carry their shelters around for when they need them
A new species of hermit crab is named to honor her 7-year-old granddaughter Molly
While the carnivorous cravings of most flesh-eating plants are limited to small insects, one exception is the pitcher plant
The National Zoo's seal-breeding program has another gray seal pup success
A puff adder has just bitten a rat, injecting it with enough venom to finish it off. The next step is to swallow it whole
Biologists are waxing poetic about these unusual oceanic core samples found in the ears of cetaceans
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