Ebola is once again making headlines and has been declared a Public Health Emergency of International Concern — the World Health Organization’s highest level of alert — after cases crossed the border ...

Whale sharks (Rhincodon typus), the world’s biggest fish, are one of the most charismatic marine species. They connect with the hearts of anyone lucky enough to encounter them, making people deeply ...

The plague never really went away. Nearly seven centuries after the Black Death, the same bacterial species, Yersinia pestis, still infects people each year—3,248 reported cases worldwide from 2010 to ...

A loggerhead shrike does not eat every grasshopper it catches. Some are too toxic. Instead, the bird skewers them on thorns or barbed wire and waits, sometimes for two days, before returning to the ...

Viagra became a blockbuster drug by changing blood flow. It wasn’t long before doctors figured out it could also be used as a sexual enhancement pill. Now scientists say its active ingredient, ...

In one of the ocean’s strangest sleep routines, sperm whales can hang almost motionless in the water like giant living ...

Today’s 7,600 languages might seem like a lot, but they're just a fraction that survived a vast, ancient extinction.

The Hoba meteorite in Namibia is the largest known natural piece of iron on Earth, weighing about 60 metric tons today. By ...

Black marks began appearing on catfish pulled from a lake along the Vermont–Quebec border more than a decade ago. Some looked like dark stains while others formed crusted lumps around the fishes’ ...

A peptide is a short chain of amino acids, the same building blocks that form larger proteins. The human body produces millions of them, using them to carry messages, control hormones, regulate ...

Mosses are among the oldest plants in the fossil record. This is even obvious from their lack of the plumbing that lets trees ...

That’s one of the hallmarks of stupidity, as outlined in The Basic Laws of Human Stupidity, a satirical essay written in 1976 ...