Giant Eyes Help Colossal Squid Spot Glowing Whales

Giant squid in ice; courtesy of Fir0002/Wikimedia Commons Giant and colossal squid can grow to be some 12 meters long . But that alone doesn’t explain why they have the biggest eyeballs on the planet. At 280 millimeters in diameter, colossal squid eyes are much bigger than those of the swordfish, which at 90 millimeters, measure in as the next biggest peepers.

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Giant Eyes Help Colossal Squid Spot Glowing Whales