Octopuses and Coconuts.

Now, for the life of me, I would never dreamed of linking a coconut shell and an Octopus in the same sentence. Maybe I am a poor creative writer or sci-fi writer.

But as is always the case with Nature, here is a bizarre story of Veined Octopuses, which not only use the coconut shells to hide in (see picture above), but actually "walk" around with them. National Geographic has this all covered in an interesting article complete with video. Here.