This video is from 2011, but it's still so awesome. An octopus walks out of the water at Fitzgerald Marine Reserve, drops a crab shell at the feet of some humans and ambles back to its watery home.
Who knew octopuses were so generous? Katherine Harmon Courage of Octopus Chronicles explains that this behaviour isn't actually that unusual in a great article over at Scientific American blogs.
Octodad, is that you?