Animals

The newly described extinct species is closely related to the largest marsupial to ever roam the Earth.

Paleontologists have uncovered a graveyard of ancient elephant relatives.

A beluga whale that was discovered wearing a suspicious harness in 2019 is on the move in search of other belugas. But it's heading in the wrong direction.

The bright-eyed reptiles were identified as a new species after a genetic analysis of other geckos revealed they were separate from another closely related species.

A mysterious epidemic that began in the Mediterranean at the start of the year looks set to wipe out all of the Mediterranean and Red Sea’s urchins, and possibly their coral reefs too.

Crabby bodies are so evolutionarily favorable, they've evolved at least five different times. So why does this process, known as carcinization, keep happening?

By targeting a single gene, scientists successfully turned chickens’ feet from scaly to feathery.

These "greedy" eels likely retreated into the gloomy depths of underwater caves in search of tasty crustaceans and are adapting to the darkness by going blind, one eye at a time.

The study reveals new information about the carnivorous dinosaur Irritator challengeri, but the research has been criticized because the fossils may have been illegally removed from Brazil.

It is only the seventh case of the deadly disease reported in the U.S. since it first emerged in the country in 2003.