New research suggests that determining evolutionary trees of organisms by comparing anatomy rather than gene sequences is misleading. The study shows that we often need to overturn centuries of ...

To understand how organisms are related, researchers use molecular information to construct phylogenetic trees. Most of the time, scientists use thousands of protein-coding sequences to determine ...

Every time we speak, we're improvising. "Humans possess a remarkable ability to talk about almost anything, sometimes putting words together into never-before-spoken or -written sentences," said ...