The southern gastric brooding frog(Rheobatrachus silus) is a creature that has been extinct and then resurrected after almost 30 years. Mike Archer from the University of New South Wales and his team of scientists’ goal is simple: To bring the extinct gastric brooding frog back from oblivion. The species was discovered in 1972 in the mountains of Queensland, Australia. It’s a remarkable for the way to reproduces. The mother frog converts her stomachs into a womb. She swallows her own eggs and stops making hydrochloric acid in her stomach to avoid digesting her young. 20-25 tadpoles hatch inside her and the mucus from their gills continues to keep the acid at bay. While the tadpoles grow over the next six weeks, mum never eats. Her stomach bloats so much that her lungs collapse, forcing her to breathe through her skin. Eventually, she gives birth to her brood through “propulsive vomiting”, spewing them into the world as fully-formed froglets.
Photo credit: Bob Beale
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