Science

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During her 42-hour attempted swim from Cuba to Key West this week, Diana Nyad battled extreme exhaustion, severe sunburn, strained muscles, powerful storms and circling sharks. But the thing that really ground the 103-mile trek to a halt, she said,…

The Trogloraptor is at once a new species, genus and family of spider. Photo by California Academy of Sciences. The Trogloraptor, a cave-dwelling spider with peculiar, talon-like claws, hangs upside down from strands of spider silk, legs dangling in…