Mammals:
* Humans: Mothers provide milk through breastfeeding.
* Dogs: Mothers nurse their puppies with milk.
* Cats: Mothers nurse their kittens with milk.
* Bears: Mothers nurse their cubs with milk.
* Whales: Mothers nurse their calves with milk.
* Kangaroos: Mothers nurse their joeys in a pouch.
Birds:
* Robins: Parents bring worms and insects to their chicks in the nest.
* Hawks: Parents bring small mammals, reptiles, and birds to their chicks.
* Owls: Parents bring rodents and other small prey to their owlets.
* Penguins: Parents bring fish and krill back to their chicks.
Fish:
* Cichlids: Some species of cichlids carry their young in their mouths until they can fend for themselves.
* Sea horses: Males carry the eggs in a pouch and care for the young after they hatch.
Insects:
* Bees: Queen bees lay eggs, and worker bees feed the larvae with pollen and nectar.
* Ants: Worker ants feed the larvae with food gathered from the colony.
Reptiles:
* Crocodiles: Mothers guard their nests and sometimes carry young in their mouths.
* Lizards: Some species of lizards bring food to their young.
Other:
* Spiders: Some species of spiders provide food for their spiderlings.
* Octopus: Mothers guard their eggs and die shortly after they hatch.
This is just a small sample of the many animals that feed their young. There are many more species that engage in this behavior, and there are also many different ways that animals feed their young.