During animal development, cells divide and arrange themselves in a coordinated way, eventually forming the embryo. The cells communicate with one another during this process through cell-surface ...

Can a monkey, a pigeon or a fish reason like a person? It's a question scientists have been testing in increasingly creative ...

In the lab, researchers test this by giving animals randomly paired images, one pair at a time, and rewarding them with food for picking the correct one. For example, animals lear ...

Born to parents who were former poaching victims, this was an extraordinary birth that was kept confidential to monitor the ...