Newly discovered African fossils lend a hand to suspicions that an ancient hominid outside our own genus, Homo, made and used stone and bone tools.
Insects have long pollinated plants, but evidence of ancient pairing is rare. Fossils now show bees and linden trees goes back 24 million years.
Normal cellular processes in living things — from germinating plants to our own cells — create biophotons, though escaping light isn’t visible to us.
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