What does scientist will say if hypothecaly that they discovered that earlier Synapsids like furst Synapsids has the first primitive mammary gland, maybe they will considered mammals are aren't a new class of animals anymore but part of the class Synapsida.
@@Dr.Ian-Plect Nope, mammals are social animals because of they're young feeding behaviors. Some animal like worms and some fishes just abandoned they're eggs and will not care about it.