biology

The endangered tapir faces threats like poaching, habitat loss, and trafficking, but Nai Conservation, an organization in Costa Rica, is leading a grassroots effort to save the species.

Research data indicates men can expect to live an average of five fewer years than women. The reason might surprise you.

The ancient Greeks and Romans gorged themselves while lying down, but medical professionals say eating (and digesting) in a reclined position isn't such a good idea.

High blood pressure guidelines have changed recently, which means Americans are more likely to receive a hypertension diagnosis than ever. Here are some essential facts about high blood pressure symptoms and causes.

Astronaut Scott Kelly used cotton swabs to take samples of his fecal matter. He then sealed it in tubes and sent it back to Earth via rocket.

Archaeologists and geneticists are looking at how human hair, and its countless hair types, evolved over millennia. Their research could shed light on the habits of our ancestors.

All of your blood vessels laid end to end would circle the Earth 4 times. Read on for more amazing tidbits about the human body.

The 3D-printed sushi at Sushi Singularity will be custom-built around your biological data. To get it, the restaurant will ask you to mail a saliva, urine, or feces sample before your meal.

Sleep might help the brain clear out and reorganize information. You might be surprised at what else you're doing while zonked.

The warty comb jelly forms an anus only when it needs to defecate, and it may hold clues to how the anus evolved millions of years ago.

Saliva is more important than you think: You need spit to taste, chew, swallow, and digest everything you eat. Your spit even fights tooth decay and cavities.