Hybrid sharks: Is humanity doomed?
In nature, everything has its place. Crocodiles grow in freshwater. Polar bears stay near the Arctic Circle. Suckerfish can be found in the close orbit of larger sea life. Yet it is because of this natural rigidity, which rarely bends, that scientists are so baffled today.
Recently uncovered in the waters off Australia is an unprecedented hybrid shark, a result of the mating of the common blacktip shark, known to the cooler seas near Sydney, and the Australian blacktip shark, which calls the warmer waters 1,000 miles north home.
It's a historic find - the world's first-ever hybrid shark - though not the first time two different species have combined to create a new one. In honour of Australia's find, MSN highlights more of the wildest hybrid animals found on earth.
Fifty years ago, in 1964, U.S. President Lyndon Johnson signed the Wilderness Act into law, setting 54 areas aside for federal protection. It opened th... More Fifty years ago, in 1964, U.S. President Lyndon Johnson signed the Wilderness Act into law, setting 54 areas aside for federal protection. It opened the way for an American wilderness system that has grown to more than 110 million protected acres in which, the act says, "the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain." More proposed areas await congressional approval, including the Rocky Mountain Front in Montana and the Columbine-Hondo in New Mexico. Read more about the legacy of the Wilderness Act online in National Geographic magazine: http://ngm.nationalgeographic.com/2014/09/wilderness-act/kolbert-text
Date 10 hrs ago, Duration 3:50, Views 212
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