Like all marsupials, kangaroos have pouches where their (babies) joeys are reared. The joeys drink milk from the mother’s mammary glands.
The females usually have one young annually, however they’re able to keep extra embryos in a dormant state (‘embryonic diapause’) until the first joey leaves the pouch.
They are able to have a joey at their feet, one in the pouch and another in diapause all at the same time.
Incredibly, each of the female’s four teats provides different milk for the different stages of the joeys’ development.
We saw these Eastern Grey Kangaroos in the Cattai National Park in NSW Australia