All female mammals of the world, domesticated or wild, produce milk for their young. These include:
Cows (cattle, bison, elk, moose, caribou, whales, dolphins, manatees, elephants, rhinos, hippos, etc.)
Does (goats, deer, antelope, rabbits, hares, etc.)
Jennies (donkeys, burros, asses)
Ewes (sheep)
Sows (pigs, bears, warthogs)
Female primates (human women, chimps, orangutangs, baboons and other monkeys)
Yes, they are mammals so they feed milk to their young.
no,birds feed their young with worms and insects.
Your question seems to suggest that mammals that feed milk to their young are a subset of mammals. But all mammals feed milk to their young. That, along with the presence of hair, is the defining characteristic of all mammals, without exceptions.
Rats are mammals. Mammals feed their Young on milk.
milk
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Yes. Mammals are the only animals that feeds milk to their young.
Yes, bats are mammals and feed their young milk.
Do they have hair? Do they feed their young with milk? Yes, chinchillas are mammals because they feed their young with milk and they have lungs and fur.
All female mammals produce milk to feed their infant young.