on fresh salt water
mammals can give birth to live young they have hair on their bodies and they can produce milk.
NO! There is fresh and non fresh water every were in the world. There is more fresh water in wet places than in dry places.
non-renewable
non-salted water is most often referred to as "fresh water" or non-salinated water.
Mammals Have Hair Or Fur, Non-Mammals Don't.
No. There are non-mammalian carnivores that live in the ocean, such as sharks.
other small non aggressive mammals are best.
You mean, what mammals lay eggs rather than giving live birth? The only mammals that lay eggs are the five species of monotremes: the platypus, and four species of echidnas.
a sea star is non living
The only animals that suckle are mammals, but not all mammals give live birth (the monotremes do not). So the answer to your question is "non-monotreme mammals," but there is no common official term for them.
Bison, being non egg laying mammals, do bear live young.