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Science

Scientists may have finally explained why our brains and bodies are cross-wired

Scientists propose that the brain’s mysterious cross-wiring, which connects each hemisphere to the opposite side of the body, may have originated more than 500 million years ago in the visual systems of ancient fish. Rather than evolving for a specific advantage, this unusual arrangement may simply be a legacy of evolution building new brain circuits on an ancient foundation.

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Politics

US midterms: "Voters have become increasingly frustrated with President Trump"

The polls in these midterm elections suggest that "this will either be a good night or a historic night for Democrats". But what is driving this momentum? We discuss this with our guest, Mallory Newall, Senior Vice President at Ipsos. "We've seen in our polling at Ipsos in recent weeks and months that voters have become increasingly frustrated with President Trump," she says.

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Science

75,000-year-old Neanderthal may have been killed by a spear aimed at the heart

A Neanderthal who died 75,000 years ago may have been killed by a wooden spear deliberately aimed at the heart, revealing rare evidence of prehistoric violence. A circular hole in the shoulder blade suggests the weapon pierced the chest and caused a rapidly fatal injury. Surprisingly, the same individual had survived an earlier devastating facial injury, suggesting other Neanderthals provided care and support.