After reevaluating the ankle bones of modern birds and comparing them to dinosaurs, researchers confirmed a developmental pattern linking the two species.
The ancestry of modern Europeans' genetic make up has become somewhat clearer with the discovery of a previously unknown "fourth strand" of ancient hunter-gatherer ancestry.
Researchers recently revealed that cacao trees are older than previously thought. This suggests the trees may have enough genetic diversity to meet growing chocolate demands.
Small fish dominated oceans following a mass extinction 359 million years ago. This suggests small fish actually have an evolutionary advantage over larger marine predators.
A new duck-billed dinosaur, named Probrachylophosaurus bergei, which possessed a relatively short skull crest, represents an evolutionary link between its non-crested and large-crested ancestors.
Three new catfish were recently discovered in South America. Based on their characteristics, including particularly long snouts, researchers were forced to create a new genus.
Venom is both a predatory defense and a predator's advantage. While some venomous animals have recently evolved with more potent toxins, their ancient counterparts diversified less often. This suggests that the evolution of venom is more complex than previously thought.
Although researchers have long believed mouse-eared bats strictly fed on insects, it appears they also consume local fruits. In doing so, they help to disperse seeds that ensures the growth of local fauna.
The shape of a bird's wings depends greatly on its lineage rather than on distinctive flght styles.
Five new long-haired parasitic wasp species have been found in India. A recent study revealed these insects prefer spider eggs as their host of choice. The uniqueness of these insects suggest there are many more parasitic wasps to be found.
Members of both animal and human social groups work together to hunt, forage and fight under the guidance of leader. A recent study took a closer look at the nature of leadership to better understand how human and non-human leaders promote cooperative actions.
A recent analysis found fault in a study that claimed chimpanzees newcomers were able to learn language from the native group they joined. Researchers suggest the original Edinburgh Zoo study was flawed and the conclusions actually misrepresents what the data shows.
Supercontinent Pangaea covered most of the Earth 278 million years ago and was home to animals unlike modern species. Researchers from The Field Museum describe several new amphibian species and a reptile that help paint a clearer picture of how diverse these ancient species really were.
To adapt to changing environments, fish have evolved with an enzyme researchers refer to as Cyp27c1, which is closely linked to vitamin A and known to promote good vision in low light.
Some butterflies have developed a toxic chemical that makes them poisonous to some birds. However, birds recognize which butterflies are lethal and avoid eating them. Since not all butterflies are equipped with such predatory defenses, they mimic their lethal counterparts and trick birds into thinking they are poisonous too.