Adults might not, but babies do. I recently had a runt in my litter who was clinging to life. Trying to save its life, I warmed up some cow's milk in the microwave and used my pinkie as a nipple. It actually worked! The little thing was sucking milk from my finger. It is now doing quite well and has grown up like the others. And all the mother did was lick the milk from its face.
I will feed with kitten milk or dog milk
The newborn gerbils must stay with their parents for at least a month. Their parents will take care of them, and the mother will feed them her milk. When they turn 3 weeks old, you can start feeding them real gerbil food, cheerios, and canary seed.
goat milk
milk
Platypuses are mammals so, like all mammals, they feed their young on mothers' milk.
If you can try to feed it mostly milk. It needs to get healthy.
About 4-5 weeks then the pups are weaned
Newborn humpback whales feed off their mothers milk for up to a year.
for about 2 months
No, and you shouldn't, since it's not good for them.
I'm not posetive, but if I were you I wouldn't, it wouldn't be very healthy.
You can feed a newborn either breast milk or formula like Similac or Enfamil. I think that is all they should have for the first 4 to 6 months. Then you can introduce fruits and vegetables.