New evidence from the fossils of a prehistoric "killer walrus" indicate that the creature was in fact more likely to be a fish-eater, according to a study published in the journal PLoS ONE. "When we examined the new specimen and the original fossils, we found that the teeth really weren't that sharp at all -- in fact, the teeth looked like scaled-up versions of the teeth of a much smaller sea lion," said researcher Robert Boessenecker of the University of Otago in New Zealand.

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