There have been fewer than 130 sightings of the giant phantom jellyfish. Now a 30-foot-long specimen has been spotted off Antarctica on.natgeo.com/3YZDoRN

More than 50 percent complete, the trail not only will it be an epic journey from mountains to plains to the clear waters of the Pacific, but it will also be a way to help re-energize dozens of communities along the way on.natgeo.com/3TuEu6X

Zebra sharks are a docile, nocturnal species best known for their characteristic stripes and spots—in juveniles and adults respectively on.natgeo.com/401fMxh

Before humans see it, they’ll feel it: itchy eyes, sneezing, coughing, and shortness of breath are all clues to a present bloom on.natgeo.com/3yQbXiF

With no script and no prescribed musical arrangement, the entire performance—which can last around four hours—will be an improvisation on.natgeo.com/42gTSHY

Cape fur seal pups are as vulnerable as they are adorable pic.twitter.com/udnYnHs0kr