How many babies do kangaroos have each year?

Answer 1

Most species of kangaroos breed just once a year, or sometimes every two years, depending on the environmental conditions. They usually give birth to just one joey at a time. It is extremely unusual for a kangaroo to have more than one joey of the same age at any given time, but twins have been observed on rare occasions. However, it is not unusual for a female kangaroo to have two different aged joeys in her pouch at the same time. Mature female kangaroos often spend their lives in a state of constant pregnancy. The female kangaroo is unique in that she has the ability to suspend the development of another embryo until external conditions, such as availability of food, are right for the emergence of another young. As an older joey moves closer to being weaned, a new young embryo makes its way to the pouch, where it will attach to a teat and stay there during its development.