VOICEOVER: Octopuses appear to be able to accept  or reject potential prey using only their arms and it was this behaviour that led researchers  to investigate their sensory capabilities.

画外音：章鱼似乎仅使用它们的手臂就能接受或拒绝潜在的猎物，正是这种行为促使研究人员调查它们的感官能力。