T. Rex ate a huge amount of meat, about as much as six average sized humans a day. That's about a half a ton a day and depending on size, it could possibly eat more.
Mother Tyrannosaurs would often stay around for months after its young was hatched. They would also challenge their mates once they were done with them, and if the male did not leave, the female would attack.
T-Rex hatchlings were surprisingly small compared to their gargantuan parents. They would often only be the size of a large chicken at birth. Their eggs were only about the size of a bowling ball.