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 ...

SYDNEY (Reuters) - In a tricky display of courting derring-do, a species of cuttlefish living in Sydney harbour woos its mate and fools rivals at one and the same time, all by the colours it flashes.

Every year off the South Australian coast, giant Australian cuttlefish come together in huge numbers to breed. They put on a technicolour display of blue, purple, green, red and gold, changing hues as ...