Imagine a world where the boundaries between “fish” and “not-fish” blur, where the ancestors of birds and mammals once swam ...

Enjoy five days' worth of comprehensive daily lesson plans, engaging activity worksheets, graphic organizers and more!

A team of international researchers has identified a new sex hormone that plays a crucial role in stimulating ovulation.

Osaka Metropolitan University researchers review the evidence for individual face recognition in fish and speculate that face identification neural networks are both similar and widespread across ...

The key to understanding vertebrate development and the origins of human birth ... scientists perform knockout mutations on a known gene of interest and then study the resulting mutant animals. In ...

Tiktaalik roseae had fish-like fins, a flattened skull (similar ... But the marvelously preserved fossil sheds new light on how the vertebrate invasion of land took place, some 375 million years ...