to blend into something means to be difficult to see in something & things that are the same coloration blend into each other ->  coloration can make an something diffucult to see  coloration can make an something diffucult to see & to hide means ability to be seen decreases ->  coloration is a kind of adaptation for hiding / camouflage  coloration is a kind of adaptation for hiding / camouflage & hiding is a kind of protection against predators ->  coloration is a kind of protection against predators  spotted is a kind of coloration & a spotted means having spots ->  spots are a kind of coloration  coloration is a kind of protection against predators & spots are a kind of coloration -> spots are a kind of protection against predators