Changes

If the female is responsive to the male, she raises her tail and the male will follow her. Sometimes the kangaroos will scratch each other’s tails or the male will give the female a back rub before mating. When the female is ready to mate she will arch her tail.

If the female is responsive to the male, she raises her tail and the male will follow her. Sometimes the kangaroos will scratch each other’s tails or the male will give the female a back rub before mating. When the female is ready to mate she will arch her tail.

Female kangaroos usually only have one baby kangaroo (called a "joey") at a time. The newborn joey weigh as little as .03 ounces when first born, after which it crawls into its mothers pouch where it will nurse, grow, and develop. They spend a lot of time in their mothers pouch developing. The Red Kangaroo joey will stay in their mothers pouch for about eight months and Grey Kangaroo joeys stay in there for about a year.<ref>http://www.youtube.com/watch?v=hiNp4ldGi_w</ref>

Female kangaroos usually only have one baby kangaroo (called a "joey") at a time. The newborn joey weigh as little as .03 ounces when first born, after which it crawls into its mothers pouch where it will nurse, grow, and develop. They spend a lot of time in their mothers pouch developing. The Red Kangaroo joey will stay in their mothers pouch for about eight months and Grey Kangaroo joeys stay in there for about a year.

==Origins==

==Origins==