A massive study of spider genetics is showing that orb weavers - with their unique webs - may not have all descended from the same ancestor. Instead, orb weaving itself may just be a common and often necessary evolutionary option.
The triceratops didn't always have the magnificent rack of horns that they are so well known for. The beaked dinosaur once sported a longer beak and shorter horns, but over the course of evolution it developed a more impressive and deadly display, according to a recent study.
Electric fish, via evolution, acquired their jolting abilities by converting a simple muscle into an organ capable of generating a potent electrical field, scientists have discovered.
Monkeys have undergone incredible facial evolution in order to differentiate themselves and avoid interbreeding with closely related and geographically proximate species, according to new research from New York University (NYU) and the University of Exeter.
Researcher have discovered a collection of early Neanderthal bones. Analysis of intact skulls indicate that these cousins to human ancestry were far more varied and "beautifully unique" than originally assumed.
Apparently birds can have it all. A new study shows that birds can be both colorful and musically gifted, contradicting Charles Darwin's long-held notion that animals are limited in their options to evolve showiness.
Researchers have uncovered the fossils of a hyper-carnivorous fox that once roamed the frozen Tibetan Plateau. This and other fossil evidence helps support the theory that the great majority of polar carnivores originated from ancient Tibet.
The lizard or the egg? In a "what came first" scenario for reptiles, researchers are now arguing that "the egg" can't even be an option. The first lizards and snakes likely exclusively gave live birth, according to a recent study.
The now-extinct elephant bird of Madagascar, though flightless, somehow flew across the world to evolve into its present day flightless relatives.
Researchers at Georgia State University discovered that chimpanzees show similar personality traits to humans, though the traits vary according to the chimpanzees' biological sex.
Among the big questions evolutionary scientists try to answer is how social behavior developed over the course of evolution. If researchers at Johannes Gutenberg University in Mainz and Basel, Germany, are correct, the beginnings of an answer to that big question may be found in the smallest of places: earwigs.
An international team of university researchers has concluded that a meeting between a Neanderthal and one of the first humans did not take place on the Iberian Peninsula.
Researchers at the University of Missouri have discovered rare, fossilized embryos that may provide valuable insight into a time of rapid expansion and diversification among the world's first organisms, according to a release from the school.
The microbes found in an animal's gut, collectively called the microbiome, may play an important role in evolution by reducing the viability of the offspring born from a male and female of different species, a new study published in the journal Science reports.