How do researchers determine the age of fish?
Correct answer: Examine the scales
SaltyWinch
The oldest known fish in the world is a shark; no scales. Its age was estimated by the eyes.
Frantic2win
I always understood it to be eyes and answer Includes eyes. rubbish.
Player #22506154
Scales seem to be an acceptable answer, but apparently ears should have been a choice & a better answer, ie the otoliths of the inner ear.
Player #22506154
Scales appear to be an acceptable answer, but ears
Nix
cut it in half and count the rings
S.AK81
Figured scales because trees are aged by the rings.
TheLark
I think (and the explanation backs it up) that it is eyes and/or scales depending on the species. So eyes is as correct as scales.
Vida Salvaje
Scientists also take a small bone from the ear, put it on a microscope and look at all the circles that it has, and that shows the age of the fish.
Red
rayvan, No. Like counting the rings of a tree.
ChewyGazelle68623
how long has that logic been around??