Norbert Wu / Comb Jelly (Mertensia ovum) with tentacles withdrawn to lick clean, Arctic

Norbert Wu / Atlantic Longfin Squid (Loligo pealii) mid-water trawl, Arctic

Norbert Wu / Constricted Jellyfish (Catablema vesicarium) tiny jellyfish, Arctic

Norbert Wu / Ctenophore (Beroe cucumis) voracious with large mouth, Arctic

Flip Nicklin / Bearded Seal (Erignathus barbatus) pup on ice edge, Arctic

Flip Nicklin / Snowy Owl (Nyctea scandiaca) chick portrait, Arctic

Flip Nicklin / Small, transparent Jellyfish, Arctic

Flip Nicklin / Comb Jelly underwater portrait, Arctic

Flip Nicklin / Sun Star, Anemones and Coralline Algae, Arctic

Norbert Wu / Moon Jelly (Aurelia aurita) oral arms arranged in cloverleaf, Arctic

Norbert Wu / Lion's Mane (Cyanea capillata) jellyfish bell can reach three meters diameter and weigh one ton, Arctic

Norbert Wu / Comb Jelly (Mertensia ovum) tentacles splayed to catch prey, Arctic