Charles Darwin worried that the fossil record looked strangely abrupt, with complex animals appearing in a geological instant ...

The oldest fossilized remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...

Circadian clocks, which reset about every 24 hours, are common in organisms living on Earth’s surface. They control sleeping and eating patterns, the rise and fall of body temperature and blood ...

We’ve known for ages that animals have a good sense of time and can control their behavior depending on the time of day it is. Many times, this sense is attributed to something known as a circadian ...

Most animals have a circadian clock that helps them distinguish night and day, but now researchers have found coastal animals seem to be equipped with a separate clock to track time via the tides. The ...

Wildlife conservation is a race against time—too often, a losing one. Typically, by the time scientists detect signs of species decline, populations have already collapsed. Genetic diversity is ...

MINNEAPOLIS (WCCO)-- Every Friday, we tackle a bunch of viewers' burning questions. This week, Heather Brown explores the symbols for democrats and republicans, grandfather clocks and spider webs vs.

May 30 (UPI) --Determining when life emerged is a difficult question, but it's one many scientists remain interested in. New research questions the accuracy of a recent model that suggests the first ...

One summer day last year, Timothy Bromage, a paleoanthropologist at New York University, was chewing on a lollipop lamb chop while vacationing in Cyprus. Suddenly, he heard a pop. When a sharp pain ...

This ‘Clock’ Could Warn of Hidden Stresses to Animals, Offering a Long-Sought Signal That a Population Is Nearing Collapse The epigenetic clock measures biological age and could help scientists assess ...