New research suggests the ancestors of reptiles, birds and mammals might have walked more efficiently on land than previously thought.
Long penises may allow hermit crabs to stay in their shells during sex, reducing the risk of shells being stolen.
Two well-preserved fossils found in China were covered in both furlike pycnofibers and featherlike features.
Heat-tolerant prehistoric enzymes might help produce valuable chemicals and biofuels.
Despite conservation efforts, close assessment of Pando reveals significant losses.
The smallest Diplodocus skull ever discovered reveals clues about the group's evolution.
The 2018 Nobel Prize in chemistry will go to Frances H. Arnold, George P. Smith and Sir Gregory P. Winter for research on enzymes, peptides and antibodies.