'About 180 million years ago, mammals evolved from this class, named from Latin for "creeping"'
reptiles
MAMMALS: About 180 million years ago, mammals evolved from this class, named from Latin for creeping
About 180 million years ago, mammals evolved from this class, named from Latin for "creeping"
About 180 million years ago, mammals evolved from this class, named from Latin for "creeping"
MAMMALS
reptiles
MAMMALS