As of Earth's Endangered Creatures List as of May 21, 2010 there are 10,801 endangered animals.
because of the humans
no
yes endangerd animals would all be killed if it wasent for zoos
Yes. All sea turtles are listed as threatened or extinct.
yes they are
blue whales
10000000
habitat loss
Too numerous to mention here, a good source is the IUCN Redlist, which lists the status of all known species.
less food, destroying their homes
yes they might be
Yes sometimes if we keep on killing them