How to Use "mammal" with Example Sentences

1. That 's the reality of being a mammal .
2. Then a similar mammal was found in myanmar in 1990 .
3. Researchers have produced a variant of h5n1 that reportedly can spread from one mammal to another .
4. But given a grain of cortex , it is not easy to tell from which mammal it came .
5. The problem with that theory is that no other mammal has resorted to this method of cooling down .