Crabs may owe their famous sideways walk to one evolutionary event that happened 200 million years ago. Researchers have ...
Morning Overview on MSN
A 550-million-year-old sponge fossil may have lacked a skeleton entirely — rewriting how the first animals evolved
When paleontologists picture the earliest animals, they tend to imagine something with at least a rudimentary skeleton: a ...
A new genome study shows gentoo penguins are four separate species, not one. The discovery reveals hidden diversity.
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