Failure to Adapt: Why Giant Sea Dragons Got Extinct
Ichthyosaurs rapidly evolved a large range of forms and sizes early in their evolution, but after a bottle neck at the end of the Triassic, show much slower rates and more restricted variety.
(Picture: Dr Ben Moon & Dr Tom Stubbs)
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/cdn4.vogel.de/infinity/white.jpg "Ichthyosaurs rapidly evolved a large range of forms and sizes early in their evolution, but after a bottle neck at the end of the Triassic, show much slower rates and more restricted variety.")
