The ancient Maya faced severe drought, according to a mineral deposit.
Relatively little research has been done in the country's waters.
Relatively little research has been done in the country's waters
An interactive chart shows the journeys of open-ocean sharks, and where they could run into trouble.
Connectivity issues could get much worse.
Don’t worry, these diseases can’t spread to people.
Little genetic legacy remains from these pups.
The bottom of the world could get down to -145 degrees this month.
We're only beginning to feel the full effects.
Young manta rays have a sanctuary in the Gulf of Mexico.
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