ince sızım
Soyu tükenmekte olan hayvanlarla ilgili İngilizce sunum
Extinct and Endangered Animals
The extinction of species has always been a natural part of evolution. The fossil record shows that since life originated about four billion years ago the vast majority of species that have existed are now extinct. Extinct species outnumber living ones by a factor of perhaps a thousand to one. Scientists have identified five extinction events in Earth’s history, with some so severe that more than 90 percent of all life forms were killed off. The last and most famous extinction was the Cretaceous-Tertiary event some 63 million years ago that killed off the dinosaurs and allowed the rise of mammals. It is thought to have been caused by an asteroid hitting Earth.
Today we are in the middle of a sixth extinction event that began about 50,000 years ago but is now accelerating in an alarming speed! This extinction event is not a natural event, but is caused directly or indirectly by humans.
Most recent extinctions extinctions have been associated with European expansion in the 15th and 16th century. However, in some parts of the world some species are known to have become extinct before the arrival of the Europeans. For example, the Polynesians who colonised the Hawaiian Island in the 4th, 5th, and 6th centuries may have been responsible for the loss of around 50 of the 100 or so species of endemic land birds in the period between their arrival and that of the Europeans.
List Of Extinct and Endangered Animals
African Elephant
African Wild Dog
American Alligator
Asian Lion
Atlantic Ridley
Atlantic Salmon
Bald Eagle
Black Footed Ferret
Black Lemur
Blue Whale
Bowhead Whale
California Condor
Carolina Parakeet
Cheetah
Chimpanzee
Coelacanth
Dodo
Eastern Cougar
Eskimo Curlew
Extinct Animals
Extinct Birds
Extinct Mammals
Fin Whale
Florida Manatee
Galapagos Flightless Cormorant
Galapagos Flightless
Gaur
Gavial
Giant Anteater
Giant Armadillo
Giant Panda
Gorilla
Great Auk
Greater Prairie Chicken
Green Turtle
Grey Whale
Grizzly Bear
Humpback Whale
Imperial Parrot
Indian Rhinoceros
Jaguar
Japanese Crested Ibis
Kagu
Kakapo
Komodo Dragon
Leatherback Turtle
Leopard
Loggerhead Turtle
Mediterranean Monk Seal
Monkey Eating Eagle
Mountain Gorilla
Orangutan
Passenger Pigeon
Peregrine Falcon
Piping Plover
Pronghorned Antelope
Przewalski’s Horse
Pygmy Hippopotamus
Sea Otter
Sei Whale
Shortnose Sturgeon
Snow Leopard
Takahe
Tapir
Tiger
Trumpeter Swan
Vancouver Island Marmot
White Pelican
White Rhinoceros
Whooping Crane
Wild Ass
Wild Yak