Thursday, February 5, 2009

Efficient Kangaroos.

I want to share some nice information about kangaroos. These marsupials are more primitive than advanced mammals. Many people have been assuming that their way of getting around was not very efficient because of their heavy use of two legs. There are only a few rodents that use hopping as a form of traveling. And the mammals that use this type of traveling are very less. But a recent study has found kangaroos use less energy when hopping than other mammals use when running. But there is of course a limit to the size of any animal that moves in this way, which is the reason kangaroos never evolved.