Assertion: mammal | /r/HasProperty | the class mammalia
Facets:
Source sentences:
text: Mammals (from Latin mamma "breast") are vertebrate animals constituting the class Mammalia ( ), and characterized by the presence of mammary glands which in females (and sometimes males) produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones.