Body: Scholars who research "Mammals" look at vertebrate animals constituting the class Mammalia, and characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones.
describe how their characteristics distinguish them from reptiles and birds is some of the cause to investigate "Mammals".
Evolution, Anatomy, Reproductive system are a few themes of "Mammals".
A few notable experts of "Mammals" include John S. Millar, Zhe-Xi Luo, Thomas H. Kunz.