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A belief in a supernatural source of evil is not necessary; men alone are quite capable of every wickedness. -Joseph Conrad, novelist (3 Dec 1857-1924)
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Skinny 'Shrew' Is Oldest True Mammal
The earliest-known eutherian mammal hunting on a tree fern.
(Image: © Mark A Klinger / Carnegie Museum of Natural History )
A shrew-like animal that snagged insects from ferns lining the shores of freshwater lakes 160 million years ago, might be one of the first "true" mammals to walk the Earth, back when the dinosaurs roamed, a new fossil suggests.
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Interactors can be communities, ecosystems or even whole biospheres
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