The larvae of one of the Australia's lungfish species. Photo credit: Nicholas J Cole
Australia’s living fossil has given scientists an insight into the development of our hind legs.
Ancient lungfish are the ancestors of the tetrapods, the four-legged creatures that took the first steps on land 400 million years ago. These fish could breathe air and propel themselves along the ground with their fins, allowing them to survive on land.
Australia is home to two marine species of lungfish and a third that inhabits Queensland’s Mary River Basin. A team of scientists led by Professor Peter Currie, from the University of Sydney, used these living fossils to trace the evolution of terrestrial hind legs.
“Lung fish are the closest living fish species to tetrapods,” said Professor Currie, one of the authors of the study published in the online journal
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