Yaffle
Volunteer Moderator
Fish it is rumoured (theorised) only have a 3 second memory;
Nope. Well, it is rumoured but it's utter rubbish. That's not a theory.
so why do sardines return to the same place every year to be slaughtered by dolphins - you'd think (given evolution) they would learn
What does an individual's ability to learn have to do with evolution?
Evolution is a theory, it is not fact at all, as there are so many unanswered questions.
Please look up the word theory and what it means.
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