Before There Were Birds or Bees, This Is How Trilobites Made Babies - The New York Times

The discovery of clasper limbs in a fossil suggests that some species of the ancient arthropods reproduced much like modern horseshoe crabs.

The fragmented nature of the specimen was a lucky break because it revealed the anatomy often hidden under a trilobites shell. Importantly, nine of the arthropods rarely fossilized appendages were pr… [+2229 chars]

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