Deema Atra

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Skull discovery suggests location where humans first had sex with Neanderthals

Photograph: Israel Hershkovitz, Ofer Marder & Omry Barzilai<p>The excavation area of where the skull was found in western Galilee in a cave that had collapsed around 30,000 years …

Stephen Hawking is working on a new theory of everything

Stephen Hawking is at it again: In a Facebook posting, the wheelchair-riding British physicist says he’s working on a theory of cosmic origins that …

Deadly sea snail uses weaponised insulin to make its prey sluggish

The geographic cone snail can send whole schools of fish into hypoglycaemic shock by releasing insulin into the water<p>A tropical sea snail uses a potent form of insulin to subdue its fish prey, scientists have discovered.<p>The geographic cone snail (<i>Conus geographus</i>) uses the chemical to cause a …

Zoology

Does chilly weather really cause a cold?

Maybe Mom was right all along.<p>Although generations of parents have warned their children that venturing into the cold without a hat will make them sick, scientists have long understood that viruses cause the common cold, and that they can strike in all seasons.<p>Now, however, new research suggests …

National Academy of Sciences

No charges for Milwaukee officer involved in fatal shooting

A district attorney has decided against charges in the case of a police officer who fatally shot a mentally ill man more than a dozen times in Milwaukee.<p>The officer, Christopher Manney, killed Dontre Hamilton during a confrontation in April.<p>The officer says he opened fire when Hamilton grabbed his …