Karen Zamora

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Most of us learned about the world's oceans in elementary school. There's the Pacific, the Atlantic, the Indian and the Arctic.

Now, there's a sea change ahead.

Thanks to National Geographic, you'll soon see a fifth ocean on your maps. It's now officially recognizing the Southern Ocean, the waters swirling around Antarctica, marking the first time the organization has made such a change since it started drawing up maps over a century ago.

After 17 years underground, the Brood X periodical cicadas are slowly emerging in 15 states across the East Coast and Midwest.

They'll shed their skins and spend four to six weeks mating before the females lay eggs and they all die.

But some of them are getting wilder in their short lives above ground.

A fungus called Massospora, which can produce compounds of cathinone — an amphetamine — infects a small number of them and makes them lose control.

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