Do you know that the kangaroo is able to pause its pregnancy & can have up to 3 babies at the same time in its pocket? At birth, the baby measures 2 to 3 cm & weighs 1 g, it remains between 235 & 250 days in its mother's pocket. It takes its head out of the pocket for the first time around 5 to 6 months. He left the pocket definitively 3 months later. Kangaroo mom is very careful when she jumps to move, up to 3 meters, she tightens & contracts her muscles so that her baby stays in place.