In 2006, a group of humans that walked on all fours was made famous by a BBC documentary. Now, scientists have contradicted claims that this group represents a possible example of backwards evolution.
If something works there's no need to fix it, and animals take that to heart when it comes to foraging techniques. Scientists have discovered that animals have used the same method to search for food that's in short supply for at least 50 million years.
The rare and mysterious green spotted pigeon, which became extinct hundreds of years ago, is now being examined a bit more closely with the help of its DNA.
How cute is your dog? It may have evolved to be more adorable than its wild ancestors during the domestication process. Now, researchers have uncovered the underlying link between "cute" traits and a group of embryonic stem cells.
Scientists have unraveled one of the riddles of mammal evolution. They've discovered why mammals have a strong conservation in the number of their trunk vertebrae; it all has to do with the essential role of speed and agility.
Birds may not have evolved from ground-dwelling dinosaurs. In fact, they may have had nothing to do with these long-extinct animals.
After re-examining a 100,000-year-old archaic early human skull found 35 years ago in Northern China, researchers have found the presence of an inner-ear formation that was once thought to only occur in Neanderthals.
Paleontologists have uncovered a new specimen of Archaeopteryx that reveals surprisingly and previously unknown features of the creature's plumage.
While scientists have recognized modern human characteristics for decades, they are now reconsidering the true evolutionary factors that drove them.
Researchers believe that figuring out how to survive on a lean-season diet of insects may have spurred the development of our bigger brains and higher-level cognitive functions in humans.
While one popular theory holds that Northern Europeans developed light skin in order to absorb more UV light to make more vitamin D, a new study calls that idea into question.
The electric eel is an unusual creature with the ability to create a potent electric field that it uses to hunt its prey. Now, scientists have uncovered the evolutionary origins of this electric field and have found that the eel's charge actually evolved from a muscle.