With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...
Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...
The oldest fossilized remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...
Because animals have a limited capability of understanding human language, they cannot “read” the way humans do.
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