The discovery of a collection of about 700 fossils known as the Jiangchuan Biota gives scientists a better understanding of ...

A newly discovered fossil site in southwest China has transformed our understanding of how complex animal life emerged on Earth, revealing that many key animal groups had already evolved before the ...

If you trace the animal family tree back through the fossil record, the trail usually goes cold about 539 million years ago. Before this boundary—the start of the famous Cambrian explosion—multicelled ...

How and why the Cambrian explosion occurred has been the subject of debate ever since fossils of this remarkable event were ...

Olfactory receptors (ORs) are key to how animals perceive their surroundings, guiding behaviors like foraging, mating, and avoiding danger. In chordates, the genes encoding these receptors are ...