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

Insects display extraordinary diversity in sperm form and reproductive anatomy, reflecting a complex interplay of evolutionary pressures from mating systems, sperm competition and cryptic female ...

A study has found that the reason why the evolution of the first animals to appear on Earth was delayed for over 10 million ...

In flowering plants, the transition from cross-fertilization (outcrossing) to self-fertilization has evolved repeatedly across species. This shift is often accompanied by a well-known set of traits ...

The problem of how life evolved on Earth has intrigued the minds of many great scientists for centuries. Now, according to an exciting study published in the Proceedings of the National Academy of ...