Feed your baby fish a few drops of infusoria, a liquid fry food, from an eyedropper several times a day after they have just hatched. Infusoria is small enough that your baby fish will be able to eat it. Crush up some flake food into a powder if you do not have any other options for fry food. Bi-parental care is the most common form in birds, especially in passerines. A mating pair equally contributes to feeding and guarding the offspring. It occurs in approximately 85% of bird species. The hatchling benefits from the mutual care at the cost of the parents' future reproductive success.
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![Parental care in fishes feeding center Parental care in fishes feeding center](http://upload.wikimedia.org/wikipedia/commons/thumb/8/86/Zoarces_viviparus.jpg/800px-Zoarces_viviparus.jpg)
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