Ram's horn shells are small, delicate spiral structures beachcombers can commonly find throughout the world. Yet despite their ubiquity, the original owners of these shells are extremely elusive. Until now, we've never had footage of a single one in the wild. In the twilight zone of our oceans, at the tips of sunlight's fingers, a remotely operated vehicle (ROV) has now delivered the first footage of a ram's horn squid (Spirula spirula) in its natural habitat. This strange-looking cephalopod is a wee little thing barely 7 centimetres (under 3 inches) in length, with eight arms, two tentacles, a pair of...