National Geographic : 1999 Mar
SKIN AND BONES Its food sources driven away by abnormally warm water off San Miguel Island, California, this six-month-old California sea lion pup being readied for a necropsy was among hundreds that starved to death. Nursing females usually find plentiful squid and small fish near the surface, but the prey swam deep in search of cooler waters, out of sea lion diving range. In non-El Niio years the pup mortality rate runs about 25 percent. In 1997 it hit 70.