There are individual mammals that are bigger than individual reptiles, and there are individual reptiles that are bigger that individual mammals. However, the average size of all extant mammals is larger than the average size of all extant reptiles. Most reptiles are lizards and snakes, which are usually small. Only a few species of tortises, alligators, crocodiles, caimans, and very large snakes are big. Most mammals are bats, rodents, and shrews, which are usually small, but there are still hundreds of mammals that are big, including the biggest animal on the planet: the blue whale. There are more large mammals than there are large reptiles.
is a caribou a reptile or a mammal
Is a crab a reptile or a mammal
mammal
a snake is a reptile a bat is a mammal
No, an alligator is not a mammal. It is a reptile.
Reptile
Reptile
It is a bird, neither mammal or reptile.
Mammal.
Mammal
A leopard is a mammal.
A crocodile is a reptile.