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Ancient human bone fragment against a black background with 1 cm ruler for scale
Researchers extracted ancient human bone fragments from the Ilsenhöhle cave in Ranis, Germany.
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a picture shows ancient bones in situ in gravelly soil. The skeleton's shins are folded back against the person's chest.
Ancient remains dating back around 2,000 years suggest a cousin of syphilis spread around South America then, but not the sexually transmitted kind.
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A live shark's fin with a giant hole in it.
Rather than a tracking tag telling scientists where this shark traveled, its violent removal let them observe an unexpected regeneration process.
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A photo montage shows a close up of a spider next to a picture of biologist Sara Goodacre. Goodacre is shown wearing white protective gear in a laboratory, looking up at scientific equipment.
Biologist Sara Goodacre, seen in this photo montage, studies spider silk for use in medicine and engineering.
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A worm, Chordodes fukuii, and a mantid, Tenodera
angustipennis, pose with a leaf for scale.
In a fight between this measly worm and majestic mantis, who do you think would win? You might be surprised.
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The fin and head of a killer whale surface on the foreground between two small boats with forested mountains behind them.
An orca slightly breaches the water between two boats in Alaska.
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A person holding a five-pointed starfish.
Genetics suggests sea stars have a head in each limb. Does that mean they have multiple brains, too?