RED-TAILED GOLDEN AROWANA - Mouth Brooding
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The most fascinating thing about the Arowana is that it is a mouth brooder, it is capable of carrying hundreds of eggs in its mouth and, even after they hatch, the little fish live in the father’s mouth for a considerable time before they venture out on their own.
In mouthbrooding, the eggs are protected until they hatch and the fry become free swimming. Only in some cases does the parent extend protection to mobile juveniles. Among the cichlids and arowanas, extension of brood care to the fry is common, and they have behavioural cues to tell fry swimming and feeding away from the parent that danger is approaching and that they should return to their parent’s mouth. By caring for their offspring in this way, mouthbrooding fish are able to produce smaller numbers of offspring with a higher chance of survival than species that offer no broodcare.
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Yellowhead Jawfish brooding eggs
Arapaima or Piraucu