Question

how did the extinct gastric frog give birth to its young ones?

Answer 1

✴ Hlw frnd here is ur answer ✴

The gastric-brooding frog is the only known frog to give birth through its mouth. ... They found a related frog which also lives in the same region in Australia, deactivated its eggs, and replaced them with preserved eggs taken from the extinct frog. The eggs began to divide and form into the early embryo stage.

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Answer 2

Researchers are trying hard to bring one of the world's weirdest, and undoubtedly coolest, frogs back to life. The Gastric-brooding frog became extinct in the mid-1980's. It was native to a small portion of Queensland Australia and, here's what makes it so interesting, it gave birth through its mouth.  
The gastric-brooding frog is the only known frog to give birth through its mouth.  According to researchers at the University of South Wales, the frog lays eggs but then swallows them. The eggs are coated in a substance called prostaglandin which causes the frog to stop producing gastric acid in its stomach so the eggs will be safe in her stomach. The eggs stay in the frogs baby until they hatch, at which point they crawl out of her mouth. The frog can have as many as 25 baby frogs at a time. 
Now, researchers at the University of South Wales are trying to clone the amazing, and slightly creepy, frog.

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