A vast, mostly invisible ecosystem crucial to our life on Earth is in trouble, but efforts to save the 'prairies of the sea' are finally coming into focus
A short list of some of nature’s most curious phalluses, from the echidna’s four-headed unit to the dolphin’s prehensile member
A new study in Nature published the genomes—the complete DNA sequences—of 363 species of birds, opening the door for hundreds of new studies
A new study suggests the marine mammal can recover naturally if illegal fishing is eliminated
The Peruvian tern's desert camouflage makes it almost impossible to track, but that’s exactly what the research team set out to do
Every November, hundreds if not thousands of the birds of prey gather in Haines, Alaska, to feast on salmon
By exposing fish to experimental constructions, scientists hope to find out if replicating coral reefs is really the way to go
From snakes that eat their prey alive to primates that inject their peers with flesh-rotting venom, these are the scariest deeds committed by critters
Sounds trigger the ogre-faced spider to backflip and shoot a silk trap on other insects
Make Halloween the reason to learn to love and conserve these misunderstood mammals
Researchers from California and China identified the 50-million-year-old bone of a giant bird that lived in Antarctica
You've got questions. We've got experts
A deadly shortage of venom antidote has spurred a little-known group of scientists in Costa Rica to action
The paths the pachyderms make aid plants, other animals, and local people—whose way of life is threatened by the species’ decline
For this month's "Meet a SI-entist," the Smithsonian's curator of cephalopods says these are the "intelligent invertebrates"
From salmon spawning to the dancing lights of the aurora borealis, Alaska has some of the country's most impressive natural wonders
After absence of more than 50 years, the pint-sized predator returns to the prairie
A soon-to-be digitized and publicly accessible collection of specimens helped resurrect the California Academy of Sciences
Scientists put GPS locators inside plastic eggs to find trafficking destinations in Costa Rica
The National Zoo announces the 6-week-old giant panda is a boy
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