Saturday, January 7, 2012

 Delay the birth of the baby
while waiting for better conditions

Females of the large red kangaroo can mate at any time of year and usually permanently pregnant. However, they have the ability to delay the birth of the baby while the other newborn is still growing in the bag and can not leave it. Usually, they resort to such frozen embryo development under adverse environmental conditions such as drought. Also, females of this species can be simultaneously kangaroo produce milk with different fat content for babies of different ages.

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