... To determine the extinction of the species barely a century after first contact with the man. The dodo is perhaps the first animal species whose extinction is directly linked to the interrelation with humans, and that men are the main responsible. and Spain, despite being the country with the greatest biodiversity of the continent, 33% of vertebrates are endangered. 11 167 animals of endangered species worldwide, 124 species are considered in critical condition. between these species at serious risk is the Iberian lynx, who survive only 200 copies and is the world's most endangered cat. Iberian lynx in the zoo vigo - photo enrique a. flickr among the endangered cats are the puma (mountain lion or American), which despite its great adaptability to different environments, has been in the last centuries human permanent dam. Other endangered animals include the alligator, and several species of turtles (mostly marine), frogs and lizards among the reptiles. among birds, are the eagle, the condor, albatross species dark, thin, white-crowned peak, other birds of the family of gulls, the black owl, hummingbird boy. Birds are animals with more endangered species. among mammals are also endangered gorilla, the largest of the apes, and the panda and koala, which have been the two species with greater diffusion of protectionism in the media in recent decades. the Cantabrian brown bear population is estimated at only about 80 individuals living in the Pyrenees. different species of whales are also endangered: the blue whale, gray whale, sei whale and the bowhead whale. now known as well as two species of endangered sharks: the spiny dogfish shark (small, from coast) and the porbeagle shark (ocean, relative of the great white shark.) all these animals mentioned here, along with over a thousand in currently endangered, have run this way mainly as a result of man. especially poaching, but also the processes of desertification and habitat changes that produced mankind in the last 5 centuries ....