Environment
Oldest mass animal stranding revealed in Death Valley fossils
About 540 million years ago a group of jellyfish washed ashore, died and fossilised – preserving evidence of the earliest example of an animal mass death event
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About 540 million years ago a group of jellyfish washed ashore, died and fossilised – preserving evidence of the earliest example of an animal mass death event
The last common ancestor of chimps and humans was an eastern European, claims team that analysed fossils of a 7-million-year-old ape from Bulgaria and Greece