An intriguing new study is offering insights into the origins of sleep, for the first time discovering zebrafish brains shift through several brain states while sleeping. The researchers suggest these ...

Similarities in how different organisms look can indicate a close evolutionary relationship. Conversely, great differences in appearance can suggest a very distant relationship, as in many adult ...

Scientists have solved the mystery of why some closely-related species of an iconic reef fish have vastly different colour patterns, while others look very similar. Scientists have solved the mystery ...

Life on the Great Barrier Reef is undergoing big changes in the face of climate change and other human-caused pressures, a new study reveals Life on the Great Barrier Reef is undergoing big changes in ...

Scientists have developed a model that predicts six tropical fish species will expand into northern parts of Japan as sea temperatures rise. A new study forecasts how global climate change will affect ...

Whether you go by the calendar or conditions on the ground, winter in North Dakota is always a season of transition.

How the leopard got its spots and the zebra its stripes might not be just-so stories much longer. Biologists are beginning to pinpoint the molecular mechanisms animals use to deck themselves out with ...