Some breeds of dogs are sighthounds and use their eyes to follow prey. Eyesight in general is not one of a dog’s stronger senses. Dogs have what is known as dichromatic vision. Besides shades of grey and black and white, they see two primary colors – yellow and blue. Old television sets were analog and […]
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There are 403 endangered bird species in the world today. Some endangered bird species There are approximately 320 Whooping Cranes left in the world. In the late 1930s there were about 16 birds left and the American government began efforts to save this species. Their breeding ground is in the Wood Buffalo National Park in […]
