the limbs

Ambystoma mexicanum - fish or amphibian?. Photo: shutterstock

The evolutionary leap from fins to legs was surprisingly simple

A laboratory-grown mouse "hand". Photo: Bernhard Jank, MD, Ott Laboratory, Massachusetts General Hospital Center for Regenerative Medicine

The first biological hand produced in a laboratory

Dr. Tamar Meikin, brain researcher, Hebrew University

see with your hands?