The Introduction of Wolf
In my second post,I gave you some tips to recognize dogs and
wolves,and I want to show the details of the wolf so that you can know this
mysterious animal.
Wolves are the
biggest canines,and once are the most wide-spreaded mammals in the world.However,because
overhunted by human and the destruction of their natural habitat,the number of
wolf has decreased rapidly.Fortunately,some nations are making laws to protect
them and give back their home land so they are able to have a place to bring up
their kids.
Wolves often hunt deer,rabits
and sheep as their daily food,and they also eat mouse and voles.When time is
hard, even carrion is one of important food resources.That is
why wolves are indispensable in the nature.They hunt big animals and eat weak
ones to make sure that only the stronger ones can past their genes.They eat
mouse and voles to keep grassland from overeaten by mouse and voles.They eat carrion
to prevent disease from raging.In fact,there are mant parts of food-chain rely
on wolf to maintain them.
Have you watched the video, how the wolves change(狼群如何改變河流)? It is about how the wolves maintained the food chain and changed the entire ecosystem of Yellowstone National Park. I recommend it to you and hope you will like it. : )
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