Carrying a harbor seal carcass after a successful hunting foray, a transient killer whale cruises through the Pacific Ocean near Canada. Robin W. Baird
A dolphin mother nurses her calf in Shark Bay, Australia. Calves there nurse for 3 to 6 years. Janet Mann
Like her mother, a 14-year-old female dolphin at Shark Bay carries a sponge, apparently while foraging for food.
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