In order for vertebrate embryos to develop their body axes, they require what is known as an embryonic signaling center. This ...

Life was pretty nice during the Ediacaran, so the need for sex was rather limited,” Emily Mitchell, a paleozoologist at the ...

Fern-like bodies once covered the seafloor, some stretching as tall as a person. Yet for millions of years, the animal world ...

A recent study by Ruibao Li and Jennah Dharamshi published in Nature may help us understand the beginnings of animal ...

Beneficial mutations happen quite frequently, but the world changes too fast for them to stick.

Today, biologists taking a closer look at the animals located inside the Chernobyl Exclusion Zone (CEZ), which is about the size of Yosemite National Park, and investigating how decades of radiation ...

How ancient bryozoans may have looked. (Zhifei Zhang) The Cambrian explosion was one of the most dramatic chapters in the ...

A microorganism whose evolutionary roots can be traced to the era of the first multicellular animals may provide a glimpse of how single-celled organisms made a critical evolutionary leap. In ...

Tracks left by some of the earliest complex animals are giving new insights into how they experienced the world. New research reveals how these creatures started to understand their surroundings, ...

Humans take nearly 18 to 25 years to reach full maturity, far longer than most mammals. This slow human growth is driven by ...