Biologists have long puzzled over how organs develop into their final shapes, and the nearly transparent bodies of young sea stars may offer a unique window into the organ development process.

In the dense forests of the Ecuadorian Andes, the survival of a spider relies not only on its ability to prey on insects but also on its capacity to resist a threat coming from the skies. A new study ...

Groundbreaking modeling has revealed that as many as 220,000 Indigenous Australians died in a devastating 1789 smallpox ...