How was viviparity an advantage for the early mammals? - Sri Chaitanya Infinity Learn Best Online Courses for NCERT Solutions, CBSE, ICSE, JEE, NEET, Olympiad and Class 6 to 12

A
Newborn young ones are not at the risk of predation.
B
Unborn young ones are protected in a thick shell.
C
Short gestation time period allowed faster maturation.
D
Unborn young are protected inside the mother’s body.

Solution:

Early mammals were viviparous and protected their unborn young inside the mother’s body. Mammals were more intelligent in sensing and avoiding danger at least. They were small, nocturnal and more aware of the environment.