Animals

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.

CT scans revealed a layer of bony scales, or osteoderms, hidden beneath the skin of the tails in spiny mice.

The tiny marsupials have a penchant for peanut butter, which researchers have used to help them monitor and conduct health checks on the population.

Here are 10 of the most famous prehistoric creatures found in the frozen ice.

Scientists use a novel application of chromosomal analysis to finally answer a question that has challenged biologists for over a century.

Inostrancevia, a creature with tough skin like a rhino's, migrated 7,000 miles across the ancient supercontinent Pangaea and briefly dominated what is now South Africa before going extinct.