Biology

A burgeoning field is launching its first clinical trial to find out whether dialing back cell development can safely refresh aged tissues and organs

Parasitic beetles are the first animals known to imitate floral scents

Researchers pinpointed the purpose of mysterious heart neurons in mice—and humans have them, too

Oxygen and hyaluronic acid may play a role in tissue recovery and regeneration, two new studies suggest

Decades of data reveal that animals involved in the wildlife trade—from pet sales to meat markets to illegal poaching—are much more likely to carry pathogens that can infect humans

The world’s largest-known group of chimpanzees split into two factions that are now engaged in deadly combat

Scientists have learned how male octopuses’ specialized sperm-depositing arm knows where to go

These tiny fish use friction to put human rock climbers to shame

Knowing how your eye optimizes vision could have big implications for the progression of nearsightedness

On their voyages to the moon, NASA’s astronauts are finally getting some creature comforts of terrestrial toilets—such as having a door and being able to pee and poop simultaneously

Humans are the only species that has chins. A recent study sheds light on how that came to be and why evolution doesn’t always follow the rules

Snakes that gain poisons from eating toads seem to know when they’re toxic by keeping track of what they last ate