Researchers in Alaska cut open the belly of a rainbow trout and found 19 well-preserved shrews in its stomach.Researchers in Alaska cut open the belly of a rainbow trout and found 19 well-preserved shrews in its stomach. Humans love to catch and eat fresh Alaskan rainbow trout, but it turns out the fish themselves have an impressively large appetite. Researchers at Togiak National Wildlife Refuge in southwestern Alaska were catching the trout for tracking, and one fairly small fish -- 48 centimeters -- was bleeding and wasn't going to survive. Fish biologist Mark Lisac and his colleagues decided to see...