A common kitchen tool could help koala conservation

Known for their fluffy ears, round faces and big black noses, koalas spend most of their time snoozing in the canopies of eucalypt forests. Their penchant for perching high up…

Male mosquitoes sometimes suck, too

Male mosquitoes may be nearly as bloodthirsty as females under certain conditions, new research suggests. That upends the notion that only female mosquitoes bite, drink blood and spread diseases while…

The U.S. empire was built on bird dung

In December 1855 and January 1856, a trio of vessels set sail from the United States to Jarvis and Baker islands, coral atolls in the middle of the Pacific Ocean.…

The ‘Mekong ghost’ megafish has resurfaced after an extinction scare 

The “Mekong ghost” fish is a ghost no more. Like the legendary Rip Van Winkle, who wandered into the woods and disappeared for 20 years, the giant salmon carp (Aaptosyax…

How insects can help catch rhino poachers

In 1988, police officers in Australia came for Ian Dadour. Not because the entomologist was under arrest, but because they needed his expertise. Investigators asked Dadour to estimate the ages…

Polar bears are being exposed to more pathogens as the climate warms

Polar bears face mounting challenges in a changing, warming world, mostly related to their waning wintery wonderland habitats. But they may be increasingly infected with germs and parasites, too. Compared…

Science has finally cracked male riflebirds’ flirty secrets

New video of male riflebirds’ extreme wrist flares and feather noises reveals how these show-offs do their dazzle. Males of the four Ptiloris species, a group within the birds of…

At-home experiments shed light on cats’ liquid behavior

Cats may seem solid, but they’re actually somewhat liquid — at least according to one 2017 theoretical physics paper inspired by videos of cats squeezing under doors, into tight vases…

DNA from old hair helps confirm the macabre diet of two 19th century lions

A pair of male lions that roamed Kenya more than a century ago gained notoriety as the “man-eaters of Tsavo.” To be sure, the big cats hunted and ate people…

The largest arthropod to ever live finally has a head 

Two newly discovered fossils are helping scientists wrap their heads around the anatomy of the largest arthropod of all time — a millipede that grew longer than a king-sized bed…