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marsupials all give birth to under developed young, and usually have some sort of pouch to keep them and feed them until they are fully developed
This feature is not restricted to kangaros. It is characteristic of all marsupials. The pouch serves a similar purpose to the uterus in placental mammals.
No. Mammals which lay eggs outside their bodies are monotremes.A placental mammal gives birth to live young which are fully developed, unlike marsupials, which give birth to live young which are very undeveloped.
Placental mammals give birth to live young, which, during development, are nourished by a placenta. Marsupials give birth to very tiny, undeveloped offspring, which they then shelter in a pouch until the baby has developed more fully. Monotremes are mammals that lay eggs, and the only existing types are the platypus and the echidna.
The eyes....
At birth, babies have developed their sense of touch, taste, and smell. They are also able to hear sounds outside of the womb. Their sense of sight is not fully developed yet and continues to develop over the following months.
Yes they are. When they are born , their body's cones develop.
Around age either 12 or 13 as this is the age LTS stopped affecting kids
Whales do not lay eggs ! They are mammals giving birth to fully-formed live young !
A female has to be around the age of 1 to be fully developed to give birth.
They can run about an hour after birth and can stand after about ten minutes.
They're called a round character.