Explanation
Colossal squid have the biggest eyes of any living creature. This is because their enormous eyes are adapted to detect large prey in the dimly lit deep-sea environment where they live, and are said to be up to 27 cm in diameter, giving them the largest eyes of any animal. The QuizMaster of AnsweringExams.Com suggests remembering this fact by associating the colossal squid’s huge eyes with the largest diameter, 27, which is also the number of bones in the human hand, making it a memorable and unusual fact to recall. Other options are incorrect because they do not have the same level of adaptation to deep-sea environments, and therefore do not require such large eyes to survive. PPSC, FPSC, CSS, NTS, MDCAT and ECAT competitive exams test topics like this. Practice more at AnsweringExams.Com.
