One of the most mystifying creatures of the deep, the cuttlefish has abilities and even senses that are alien to us humans. This versatile animal can change its appearance at will, mimicking floating ...

Following days of training, the cuttlefish is faced with the decision to strike and devour one of two tempting prey: Will it wait for the live crayfish or immediately strike the shrimp? Its intriguing ...

Join NOVA on a voyage beneath the waves, where you'll discover a bizarre, alien-like creature like no other. It's an animal with eight sucker-covered arms growing out of its head, three hearts pumping ...