Gastric BrooderThe gastric-brooder (Rheobatrachus silus) was discovered in the 1970s and vanished within 20 years. The culprit? You guessed it: chytrid. This miracle of Australia would hatch its eggs in her stomach and then, voila!, the little brooder-ettes would hop out of her mouth. Now, you should be asking yourself how eggs could survive in a stomach full of enzymes to break down food. The fact is, enzyme production somehow shut down during gestation. Scientists think that a lot could have been learned from it all — a cure for gastric ulcers, perhaps, or new insights for treating obesity. But we’ll never know.  Once you’re extinct, there’s no rewind button.

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