Equally important,They can disrupt the world today they have not been alive and things have changed like animals and people.Then,In the article,http://blogs.discovermagazine.com/d-brief/2013/04/04/5-reasons-to-bring-back-extinct-animals-and-5-reasons-not-to/#.WtYHmejwaeE it says,”De-extinct species would be alien and potentially invasive; their habitats and food sources have changed, so their roles in these changed ecosystems could be too.This means that they can invade other animals and kill them.
Moreover,We can learn how they lived and what predators or prey caught them.Also,How there bodies are built.Moreover,In the article http://blogs.discovermagazine.com/d-brief/2013/04/04/5-reasons-to-bring-back-extinct-animals-and-5-reasons-not-to/#.WtYHmejwaeE It says,”De-extinction could offer insights into evolution and natural resources that are currently unavailable to us.To add We can find cure or diseases found in extinct animals.”This is exciting news for scientist.