Locust swarms can arise from several locations at once. Research has linked these dramatic events to bouts of heavy rain and wind — and that's not good news under climate change.
Sonar mapping revealed signs of rivers and freshwater lakes across a now-sunken landscape almost twice the size of the UK, where humans could once have thrived.
Researchers found a new species of fanged frog when they noticed clutches of eggs laid on leaves and mossy boulders unusually far above water.
About 510 million years ago, a deadly combination of low oxygen and surging hydrogen sulfide may have been what decimated 45% of all ocean life.
In the furthest, deepest reaches of the ocean, there is a watery graveyard where the world's satellites and space stations go to rest.
The number varies from a dozen to almost 100 — and most of these don't even appear on official maps.
Neon green, ultraviolet, rainbows — the variety of colors animals can make seem endless. Here's why they make this profusion of color.
The latest footage follows two other sightings of all-white, newborn humpback calves — but experts aren't convinced these whales are albino like the famous Migaloo.
From spiders the size of dinner plates, to others with inch-long fangs, these mythically-large arachnids roam the earth.
Deer are known to behead chicks and chew on their legs and wings. They have also been observed gnawing on bones from decomposing human corpses.
From Titanoboa, a prehistoric snake as long as a Tyrannosaurus rex, to modern-day pythons and boa constrictors that can swallow humans whole, these are the biggest, heaviest and longest snakes to have ever lived on Earth.
Race and ethnicity are terms that are sometimes used sloppily, almost interchangeably. But race and ethnicity are not the same thing.
Elephants gather round their dead, dogs go into decline and chimpanzees stop eating when their companions die. Is this grief, as humans know it?
Lightning is one of the greatest natural forces on our planet. New mapping tools are revealing just how big it is.
It's often assumed that birds are the only animals that sing. But these other divas of the animal kingdom prove otherwise.
Some animals lead quiet lives, while others prefer constant chatter. Why do some animals vocalize more than others, and what are they saying?
In 1626, native people purportedly sold Manhattan to the Dutch for a pittance. But there are problems with this story that we shouldn't overlook.