"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Is evolution a gradual process or a punctuated one, ...

Their discovery of Uncus dzaugisi, a worm-like creature rarely over a few centimeters in length, is described in a paper published today in Current Biology. "Scientists have hypothesized for decades ...

A representation of single-cell RNA sequencing data from two species of worms, C. elegans (left) and C. briggsae (right). Each point represents a single cell, arranged such that cells from the same ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." “It may be doubted,” Darwin wrote, “if there are any other animals which have played such an important ...