The colossal squid, the heaviest invertebrate in the world, has been filmed alive in the wild for the first time since it was identified a century ago.
Growing up to 23ft (seven metres) long and weighing up to half a tonne, the squid, Mesonychoteuthis hamiltoni, is the heaviest invertebrate on the planet. The individual captured on film near the South Sandwich Islands, in the south Atlantic Ocean, is a baby, at just 11.8in (30cm) in length.
