• Team number: 7 Members: -Hector Alejandro Mendoza Ramirez -Marco Antonio Cruz Francisco -Del Angel Escobar Osvaldo -Jorge Del Angel Villanueba -Miranda Joseph Del Angel Uriel

Animal extinction

Extinctions of species are natural in the planet's history, but in recent history, man has

had direct responsibility for the extinction of many animal

species.

The Tasmanian wolf

• The Tasmanian wolf or Tasmanian tiger was a carnivorous marsupial native to Australia. It looked like a large dog, which could be measured 180 cm in length including the tail of 60 cm. In terms of weight, could reach 30 kg. The Tasmanian wolf became extinct in the twentieth century, the last issue of on record died in the Hobart Zoo on September 7, 1936. There are several reasons for their extinction, competition with foxes and wild dogs brought to Australia by Europeans, hunting by farmers who were blamed for the death of his sheep.

The bucardo

• The Bucardo was a kind of endemic Pyrenean ibex. It differed from other species by its long, thick hair, and their antlers longer than all other Iberian goats. Since the second half of the nineteenth century many hunters from all over Europe traveled to the Pyrenees to capture this goat, just by having the impressive antlers of this species. The last Bucaro, a female, died in January 2000 when a tree fell on her and crushed his skull.

Quagga (Equus quagga quagga)

• Quagga (Equus quagga quagga) This species of zebra in South Africa is completely extinguished in about 1870. He had a reddish brown coat (no stripes) on the back and hindquarters, and black stripes on the face, neck, sides and mane, as have the other zebras. The belly and legs were completely white. Such a coat made in 1788 that it be classified as a separate breed.

• The quaggas were hunted by early Dutch settlers, for their meat and skin. In the mid-nineteenth century thousands of copies were killed as part of a plan to exterminate wild animals. This policy was designed to take advantage of the grazing lands where quaggas to feed livestock. The population of these animals declined rapidly, and the August 12, 1883 the last quagga died in captivity living in Amsterdam Zoo, quashed the subspecies.

Baiji or Chinese River Dolphin

• El baiji, también llamado Delfín chino de río, es una especie de cetáceo odontoceto de la familia Iniidae. Es un delfín de río encontrado sólo en el río Yangtze (China). Apodado "la diosa del Yangtze" en China, se presume extinto a fines del 2006 luego de que una expedición no pudo encontrar ejemplares en el río. Sin embargo, en 2007, un baiji fue avistado por un vecino de la provincia china Anhui, llamado Zeng Yujiang. Las imágenes fueron revisadas en el Instituto de Hidrobiología de la Academia de Ciencias China quienes confirmaron su autenticidad. Pero en los meses de Mayo-Junio de 2008, se ha vuelto ha declarar al baiji, completamente extinto. Su extinción se debe a la industrialización de China, la draga y el uso intensivo del rio para la pesca, transporte y energía eléctrica, el tráfico fluvial y muchos otros factores más.

The magnitude of the problem

• Low levels of animal welfare are worldwide, affecting a wide variety of animals. There are examples of many causes, including our growing demand for meat, the impact of natural disasters and lack of understanding on how to care for animals. We need a unified agreement between governments to protect animals from cruelty and neglect in the future. Billions of animals raised intensively to produce food. These animals have little room to move or behave naturally. Most never have contact with fresh air or daylight nor guarantee a humane death.

Wild animals are cruelly hunted and killed for commercial purposes. Their skins, tusks, bones and other parts are sold legally and illegally to make clothes, accessories and medicines. They are also abused in the name of sport and entertainment.

• There are about one billion stray cats and dogs in the world. Sometimes they are feared and persecuted by people terrified by the possibility of contracting diseases such as rabies. Local authorities often do not have laws on the humane treatment of these animals, so poisoning, and electrocution shots, which often cause a slow and painful death, are common.

Thanks for your attention and save the animals