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This shark can live 400 years. Its eyes barely seem to age

Greenland sharks may live for 400 years without suffering the kind of retinal decline normally associated with aging. Researchers found healthy eye tissue and active proteins specially adapted for seeing blue light in the dim Arctic depths. DNA repair mechanisms may help keep

Quitting alcohol may prime the brain for relapse

Mice that developed compulsive drinking after alcohol abstinence showed more than double the activity in a brain region associated with stress and addiction. Because the signal appeared before they drank again, researchers think it could eventually help predict who is most at

Apple cutting hundreds more jobs in shift toward AI

Apple is cutting more than 200 jobs as the tech giant sharpens its focus on AI and updates its Siri digital assistant. Roughly 100 of the eliminated positions are tied to the Vision Pro team. Another 100 hit groups working on Siri and the Intelligent Systems Experience team,