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.
In Iowa, Christina Dreier and her husband often must choose between paying bills and buying enough food for their family. Food stamps and the local foo... More In Iowa, Christina Dreier and her husband often must choose between paying bills and buying enough food for their family. Food stamps and the local food pantry provide some relief, but sometimes the Dreiers' best efforts aren't enough. They are among millions of Americans who struggle with hunger, and those numbers are on the rise. Read more about hunger in the United States online in National Geographic magazine: http://www.nationalgeographic.com/foodfeatures/hunger/ By 2050 we'll need to feed two billion more people. Click here for a special eight-month series exploring how we can do that—without overwhelming the planet: http://food.nationalgeographic.com.
Date 13 hrs ago, Duration 4:50, Views 415
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