The brainiest critter in the sea
They may look weird, but don’t let appearances fool you. These colour-blind critters are some of the brightest animals in the briny blue
With the largest brain-to-body ratio in invertebrates, cuttles are able to interpret complex signals thanks to their many amazing senses, providing these fascinating creatures with advanced decision-making abilities.
Tests have shown that cuttlefish may possess an episodic-like memory. In the same way that we can discern our memories in terms of what, when and where, cuttlefish have proved that they’re able to do this with their food, returning to areas where food was plentiful and avoiding areas where hunting was poor.
In various other tests, cuttlefish have also shown an awareness of numbers. For example, juvenile cuttlefish are able to tell the difference between higher and lower numbers of prey something that toddlers aren’t able to do. These one-month-old cuttlefish were even able to discern between (and make hunting decisions based upon) numbers of larger versus smaller prey and also live versus dead food.