The Antarctic fur seal is both adorable and also surprisingly brutal. Follow along with Bertie Gregory every Thursday to learn about the surprising habits of various fascinating species: natgeo.com/wildlife | National Geographic Animals

Cape fur seal pups are as vulnerable as they are adorable. | National Geographic

Oh baby! Actually, babies! Look closely, and you'll spot northern fur seal pups resting in a cove, hiding from hungry great white sharks, as they wait for their mothers to return from the sea to nurse. Taken at the Farallon Islands National Wildlife Refuge, the Farallon Islands host one of only two fur seal rookeries south of Alaska. Pups are born in June-August and most are weaned by late November, when they head to sea on their own. Northern fur seals were exterminated from the Farallones in t