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Q&A Where are all the non-aquatic mouthbrooders?

Some fish mouthbrood. Some amphibians mouthbrood. Crocodilians carry their babies in their mouths to water. Is there a reason why there are no instances (that I know of) of terrestrial animals that...

5 answers  ·  posted 5y ago by aadv‭  ·  last activity 5y ago by aadv‭

Question biology creature-design reproduction children