The best defence most species of octopus have is to stay hidden as much as possible and do their own hunting at night. So to find one in full view in the shallows in daylight was a surprise for two Australian underwater photographers. ① Actually, what they saw at first was a flounder. It was only when they looked again that they saw a medium-sized octopus, with all eight of its arms folded and its two eyes staring upwards to create the illusion. ② An octopus has a big brain, excellent eyesight and the ability to change colour and pattern, and this one was using these assets to turn itself into a completely different creature. ③ Many more of this species have been found since then, and there are now photographs of octopuses that could be said to be transforming into sea snakes. ④ Despite their solitary nature, octopuses do not form lasting bonds or social groups in their marine habitats. ⑤ And while they mimic, they hunt — producing the spectacle of, say, a flounder suddenly developing an octopodian arm, sticking it down a hole and grabbing whatever's hiding there.↵
*flounder: 넙치 mimic: 모방하다

How much we suffer relates to how we frame the pain in our mind. When 1500m runners push themselves into extreme pain to win a race — their muscles screaming and their lungs exploding with oxygen deficit, they don't psychologically suffer much. In fact, ultra-marathon runners — those people who are crazy enough to push themselves beyond the normal boundaries of human endurance, covering distances of 50–100km or more over many hours, talk about making friends with their pain. When a patient has paid for some form of passive back pain therapy and the practitioner pushes deeply into a painful part of a patient's back to mobilise it, the patient calls that good pain if he or she believes this type of deep pressure treatment will be of value, even though the practitioner is pushing right into the patient's sore tissues.