Some primitive birds boasted four wings, before evolution led them to ditch their hind feathers in favor of webbed or scaly feet, scientists in China said on Thursday.
Female fish in the Bahamas have developed ways of showing males that "No means no."
Birds are among the most successful creatures on the planet, with more than 10,000 species living across the globe, occupying a dizzying array of niches and eating everything from large animals to hard-to-open nuts and seeds.
Lyme disease cases are on the rise, with diagnoses occurring in areas that were historically Lyme-free. Scientists attribute the spread to the fact that populations of blacklegged ticks, which carry the bacteria that causes ...
Scientists have gained insights into how primate species have evolved through space and time by studying the anatomy of their lower jaws in relation to diet.
Scientists have successfully replicated the molecular processes that led from dinosaur snouts to the first bird beaks.
Purdue University research found that wild-type zebrafish consistently beat out genetically modified Glofish in competition for female mates, an advantage that led to the disappearance of the transgene from the fish population ...
A new study offers not only a sweeping analysis of how pollination has evolved among conifers but also an illustration of how evolution—far from being a straight-ahead march of progress—sometimes allows for longstanding ...
The mating behaviour of tiny wasps could provide vital clues to how animals can protect themselves from extinction.
Males that mate more often are more insecure about their social status than those mating less, according to new research on the behaviour of burying beetles.