The Male Seahorse use pouches for birth but some species give premature birth from their mouth. Mouth brooding keep their eggs in their mouth to protect them from the other killing species.
Male Darwin's frogs carry developing tadpoles in their vocal sacs, though others may use their mouths. Mata Mata turtles have been observed to shelter their hatchlings temporarily in their mouths ...
Researchers realized they’d discovered a new species: Telmatochromis salzburgeri, or Salzburg’s cichlid. A Telmatochromis salzburgeri, or Salzburg’s cichlid. Photo from Frederic Schedel ...