Here’s a revision of the underlined sentences using more precise language:
"One of the most remarkable strategies the octopus employs is its ability to conceal itself within its environment. It can rapidly change its skin color and texture to seamlessly blend in with surrounding objects. Predators often swim by without even noticing its presence!"
This revision enhances clarity and specificity, replacing vague phrases like "really fast" and "figuring it out" with more descriptive and precise language.