There are no such species. There are egg-laying mammals called monotremes.
A wolf is a mammal.
platypus
There is no such animal.
Amphibian
A cold-blooded animal or reptile
Arachnid
mammal, reptile, birds, amphibians, and fish
mammal, reptile, amphibian, insect, bird
a mammal is a warm blooded animal. A reptile is a lizard and snake such as a bearded dragon or even corn snake. However A FROG IS AN ANPHIBIAN
Is a crab a reptile or a mammal
is a caribou a reptile or a mammal
mammal