Can make in gestation mammary gland gets sufficient growth, make mammary gland flocculus eventually end conduit development becomes glandule bubble, make good preparation for lactation.
Proof of this advanced biotechnology is found in the flocculus, the area of the brain devoted to flight control. It's three times larger than in any bird today.
娠期可
乳
得到充分发育，
叶终末导管发展成为
，为哺乳作好准备。
战
。
现代鸟类的同一部分大三倍。
