What is bigger mammal or reptile?
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.