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IMAGE: UCSC biologist Roxanne Beltran (foreground) and other researchers prepare to outfit a female elephant seal with a satellite tag and time-depth recorder at Año Nuevo Reserve. view more
Credit: Dan Costa
Every year in May, female elephant seals leave the beaches in California where they gave birth, nursed young, and molted, to embark on a seven-month foraging migration across the North Pacific Ocean. There is danger in the open ocean, however, and the seals must avoid becoming prey themselves as they hunt fish and squid to regain the weight they lost during months on the beach with only one short foraging trip between nursing and molting.