450-million-year-old sea creatures had a leg up on breathing: First evidence of trilobites’ bizarre breathing organs uncovered — ScienceDaily

A new study has found the first evidence of sophisticated breathing organs in 450-million-year-old sea creatures. Contrary to previous thought, trilobites were leg breathers, with structures resembling gills hanging off their thighs.

Source: 450-million-year-old sea creatures had a leg up on breathing: First evidence of trilobites’ bizarre breathing organs uncovered — ScienceDaily

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