Some male cuttlefish seem to squirt out ink to enhance their courtship displays, offering the first evidence that cephalopod ink has uses beyond just fighting and defence against predators. Receive a ...

Cuttlefish are cephalopods, like squid and octopuses. The term cephalopod comes from Latin words that mean “head” and “foot” – which is apt, since the tentacles of these creatures, which help them ...