Until now, there was a conflict in the field of paleontology. Genetic analysis of how fast traits mutated and evolved ...

When the environment changes dramatically, animals from mollusks to crows can make big changes in their behavior that enable ...

Embryonic germ layers are the fundamental organizing principle in animal development. They provide the structural basis from which tissues and organs arise. During early embryogenesis, cells divide to ...

Researchers in Sweden created artificial animals that over time develop functioning vision from scratch – from simple light sensitivity to the ability to discern objects. Artificial animals developed ...

A fossil bed in China containing animals up to 554 million years old suggests that we may have to reconsider the idea that ...