露脊鯨
The only non-bird vertebrates on the island are seals, specifically the southern elephant seal and Antarctic fur seal, which both breed on the island. In 1998–1999, there were 88 elephant seal pups and 13,000 fur seal pups at Nyrøysa. Southern Right whale, Humpback whale, Fin whale, Southern right whale dolphin, Hourglass dolphin, killer whale are seen in the surrounding waters.