Adult female sea otter (Enhydra lutris kenyoni) eating urchins she has gathered off the sea floor in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

Adult female sea otter (Enhydra lutris kenyoni) eating urchins she has gathered off the sea floor in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

Adult female sea otter (Enhydra lutris kenyoni) eating urchins she has gathered off the sea floor in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

An adult American oystercatcher (Haematopus ostralegus) exposed urchins on the low tide along the shoreline on Bartolome Island in the Galapagos Island Group, Ecuador. Pacific Ocean.

A wolf eel (Anarhichas lupus) bites into its favorite food, a sea urchin.