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Fish response to extra-large novel prey. Time to consume (a) and per cent of extra-large novel prey consumed (b) Prey were offered in a ratio of 9 : 1 large focal to extra-large novel prey. Extra-large novel prey were male Periplaneta americana, which were 151% and 198% larger in length and weight, respectively, than the large-focal prey, or adult male B. germanica.
