Evolution is all about what genes get passed on overtime. The passing of genetics is directly tied to a creature's ability to reproduce. Reproduction is tied to survival. An animal that stands out like a sore thumb (i.e. is colorful) is very easily noticed by other animals. If that animal is somehow not getting killed before they can reproduce, then they are either the apex predator or the predators of that region have no interest in eating them (i.e. are poisonous), so they can continue to pass on the colorful gene.
8eSix t1_itc6yhl wrote
Reply to is it the case that poisonous animals tend to be colourful and if so why is it that they tend to evolve to be colourful moreso then other animals? by HumbleProdiGenius
Evolution is all about what genes get passed on overtime. The passing of genetics is directly tied to a creature's ability to reproduce. Reproduction is tied to survival. An animal that stands out like a sore thumb (i.e. is colorful) is very easily noticed by other animals. If that animal is somehow not getting killed before they can reproduce, then they are either the apex predator or the predators of that region have no interest in eating them (i.e. are poisonous), so they can continue to pass on the colorful gene.