Not a single representative of the great class of mammals enlivened the depths of the forest.
The Prehistoric World|E. A. Allen
But it is among the Mammals that we must seek for the most interesting species of animals of this period.
The World Before the Deluge|Louis Figuier
Birds and mammals contributing to the fertility of the soil, 319.
Outlines of the Earth's History|Nathaniel Southgate Shaler
Words related to mammals
beast, creature, vertebrate
mammals
SEE SYNONYMS FOR mammals ON THESAURUS.COM
A class of vertebrates characterized by the production of milk by the females and in most cases, by a hairy body covering. Most mammals give live birth to their young. Human beings are mammals.