1. The document is a report text about octopuses. It discusses the octopus' eight tentacles, which it uses like hands to catch prey and defend itself. 2. Key details provided include that octopuses, squid, and cuttlefish belong to the same shell-less family. A fully grown octopus can reach 8.5 meters across and weigh up to 45 kilograms. 3. The octopus hunts for food using its tentacles and will crush prey with them before eating. It escapes predators by releasing ink to cloud the water or changing its skin color to camouflage.