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The July 8 story about “trilobite farming” states that “these trilobites would be the earliest creatures known to have forged a partnership with another species.” What about the fact that eukaryotes formed a partnership with other single-celled creatures that became mitochondria or chloroplasts? Now, if you mean that this was the first extracellular partnership, then […]

Trilobites might have invented farming

A close look at fossils raises the possibility that a type of trilobite farmed bacteria.

Weevils pick on someone their own size

A horned weevil can't pick a real fight with a male too big for him because the bigger one can't get a good grip.