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81.8 MB (11.9 MB compressed)
6536 x 4376 pixels
55.4 x 37.1 cm ⏐ 21.8 x 14.6 in (300dpi)
JOSE ANTONIO PENAS / SCIENCE PHOTO LIBRARY JOSE ANTONIO PENAS / SCIENCE PHOTO LIBRARY
Diplocaulus sp. prehistoric amphibian, illustration. This extinct amphibian lived around 270 million years ago during the late Permian. It was distinguished by a boomerang shaped flattened head formed by two elongated bones. It had four short legs, and a short flattened tail. It grew to around 1 metre long. It is thought the unusual shaped head may have acted as a hydrofoil, helping Diplocaulus to swim against the current. Another use for such a large head would be to deter predators that may not be able to fit Diplocaulus into their mouths.
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