If you kill because you are hungry, it seems logical you would eat your prey. If your prey doesn't actually provide nutrients, but killing them eliminates competition to nutrients, the behavior would be evolutionarily beneficial, even if not maximally efficient.
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If you kill because you are hungry, it seems logical you would eat your prey. If your prey doesn't actually provide nutrients, but killing them eliminates competition to nutrients, the behavior would be evolutionarily beneficial, even if not maximally efficient.