<Li> wallabies: head and body length of 45--105 cm and tail length of 33--75 cm; The dwarf wallaby (the smallest member) length is 46 cm and weigh of 1.6 kg; </Li> <Li> tree - kangaroos: from Lumholtz's tree - kangaroo body and head length of 48--65 cm, tail of 60--74 cm, weigh of 7.2 kg (16 lb) for males and 5.9 kg (13 lb) for females; to the grizzled tree - kangaroo length of 75--90 cm (30 to 35 in) and weight of 8--15 kg (18--33 lb); </Li> <Li> wallaroos: the black wallaroo, the smallest by far, with a tail length of 60--70 cm and weight of 19--22 kg for males and 13 kg for females; </Li> <Li> kangaroos: a large male can be 2 m (6 ft 7 in) tall and weigh 90 kg (200 lb). </Li>

How old does a kangaroo have to be to reproduce