A reader sent me this video, which is apparently over a year old (published on February 21st, 2015 on YouTube), but I had never seen it before and it is absolutely amazing. A group of people were feeding seagulls, when suddenly an octopus appeared from the depths, and grabbed onto one of the seagulls drowning it. If someone asks me what the most badass animal on earth is, my answer is the octopus, which many people find shocking. An octopus is extremely smart and able to escape captivity by opening doors and scaling walls, their camouflage abilities are so advanced that they are being studied by the military to design living camouflage, they are able to kill and eat anything from sharks to birds with the element of surprise. We have even seen video of an octopus crawling onto land to kill a crab. Octopus are savage animals, and we are lucky that (we believe) their giant ancestors are now extinct, or they would no doubt be pulling people off docks for a snack.
Apparently this is not the first time that an octopus killing a seagull has been captured on film, here is a news story from 2012, which shows another savage octopus killing a seagull.