This octopus hitched one of the coolest rides around—a mako shark. While this might not necessarily be the case here, animals do sometimes latch onto other organisms for travel purposes. It's a phenomenon called phoresy: https://on.natgeo.com/3RyQ5lo Video: University of Auckland | National Geographic

See how this coconut octopus moves in a strange way. It's possible it is holding prey or it could be mimicking another creature - a skill the octopus is very good at. | National Geographic UK