research

The cells regained a startling amount of function, but the brains didn't have activity linked with consciousness. Ethicists see challenges to assumptions about the irreversible nature of brain death.

Canadian Twitter may truly be a nicer place. Researcher Bryor Snefjella says Canadians tend to tweet more positive words compared to their American counterparts.

Our ability to see colors develops in the womb. Now scientists have replicated that process, which could help accelerate efforts to cure colorblindness and lead to new treatments for diseases.

North Atlantic right whales used to turn up large numbers off Maine's coast, but now, adapting to climate changes, they are being spotted further north in Gulf of St. Lawrence.

A Japanese research team made immature human eggs from stem cells that were derived from human blood. The technique brings scientists a step closer to being able to mass-produce human eggs.

Plastic trash less than 5 millimeters long is in the things we eat and drink, and the air we breathe. Scientists are just beginning to study where it comes from and how it might affect our health.