The intelligence of crows is nothing to squawk about.
As the ancestors of penguins dived deeper, their wings became streamlined for swimming.
Study suggests the dangerous antibiotic-resistant bacteria known as MRSA first evolved naturally.
Fox-like dog described by first Europeans to visit the remote islands was an ecological anomaly.
Up to 63% of African and Arabian mammal species may have vanished in a previously undetected die-off.
A new paper examines how elephants work together to solve a task and when cooperation breaks down.
The flying reptile was among hundreds of fossils recovered by police in 2013.
Analysis of fish ear bones reveals how bioluminescent lanternfish became so abundant.
A fossil skull from a bird that lived in the time of dinosaurs sheds light on how the ancestors of modern birds escaped extinction.
New research uncovers the cellular basis of fractal patterns in Romanesco and cauliflower.