Aspects of this topic are discussed in the following places at Britannica.
The hylid Gastrotheca marsupiata, one of several so-called marsupial frogs, lives in the high Andes of South America. During amplexus, the male exudes a quantity of semen, which flows into the female’s pouch. The female extrudes eggs a few at a time; these are pushed into her pouch by the male, who uses the hindfeet to catch and push the eggs. The eggs are...
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