So you thought you knew the answer to this question (or were looking for one), and maybe you did, so we have found more questions like it to test your knowledge. Below we have taken the liberty and found similar online questions that are related to "How can poisonous fish be distinguished from edible ones?", why not take a stab at them and see how you do. Always remember, have fun.
If you were able to answer "How can poisonous fish be distinguished from edible ones?" then maybe you are smart enough for the 2 bonus questions below.
A: Mobinool's Answer Is
They cannot, without personal knowledge of the types of fish which are at times poisonous. Frequently local customs can be relied upon. A comprehensive three-volume publication on the subject is entitled “Dangerous Marine Animals” by Dr. Bruce Halstead.
Is That Answer Correct?