Neil Lucas / Weddell seal {Leptonychotes weddellii} mother with pup on ice, pup yawning, Antarctica

Sue Flood / Weddell seal (Leptonychotes weddellii) on ice floe, Antarctic peninsula, February

Doug Allan / Weddell seal {Leptonychotes weddelli} adult and pup swimming under ice, Antarctica

Steven Kazlowski / Weddell seal (Leptonychotes weddellii) at surface of icy waters of the western Antarctic Peninsula, Southern Ocean

Steven Kazlowski / Weddell seal (Leptonychotes weddellii) relaxing on a rocky beach on the western Antarctic Peninsula, Antarctica, Southern Ocean

Doug Allan / Weddell seal swimming under ice {Leptonychotes weddelli} Antarctica

Norbert Wu / Scuba diver exploring ice caves below Weddell Seal (Leptonychotes weddellii) breathing holes, life below feeds on seal feces, Antarctica

Mitsuaki Iwago / Weddell Seal (Leptonychotes weddellii) scratching chin, Antarctica

Norbert Wu / Weddell Seal (Leptonychotes weddellii) mother and newborn pup, Antarctica

Mitsuaki Iwago / Weddell Seal (Leptonychotes weddellii) at breathing hole, Antarctica

Norbert Wu / Weddell Seal (Leptonychotes weddellii) male showing aggression towards the diver who is near breathing hole, Antarctica

Norbert Wu / Weddell Seal (Leptonychotes weddellii) breathing hole is above this ice cave with diver, the cave is filled with Sea Stars (Odontaster validus) that feeds on seal feces, Antarctica