Each summer, thousands of beluga whales find sanctuary in Hudson Bay's estuaries, where warm, shallow waters provide safety for nursing their calves. Photographer Martin Gregus Jr encountered this pod beneath the tannin-stained waters and found that, despite the limited visibility, they could navigate with astonishing precision as the calves weaved in and out of one another. | National Geographic

WATCH: Beluga whales are called "canaries of the sea!" 🎶 | Oceana

𝐂𝐮𝐭𝐞𝐬𝐭 𝐀𝐧𝐢𝐦𝐚𝐥𝐬 | Beluga whale pops out of the water to say hello. Mostly found in the Arctic Ocean's coastal waters, baby belugas are born dark gray. #iMindsPH #newsnow #imindsphnewsnow #CuteAnimals #Ifacts | ImindsPh