Did Someone Say, "Squid Facts"?

Squids Have 3 Hearts

Their two smaller hearts serve their gills, while the larger one pumps blood to the rest of their bodies, and all three are faintly greenish in colour. These hearts are also surrounded by their renal sacks, which is a fancy way of saying that their hearts are actually located inside their excretory organs. This layout ensures that their hearts receive extra protection.

Squids Have the Largest Eyes of Any Animal

Compared to the size of its body, a squid’s eyes in general are very big. Giant squid, on the other hand, has the biggest eyes of any known animal in the world, even bigger than ostrich eyes. A typical giant squid eye measures some 10.62 inches across, which is roughly the size of a soccer ball. Since giant squid lives only in the deep ocean where there’s no light, these eyes also come with their own light organs, meaning they literally glow in the dark.

Squid Eyes have In-built Contact Lenses

Perhaps the most unusual thing about their eyes is that they change focus with their lenses. Squid eyes are protected by hard lenses, very much like the contact lenses worn by some people. If you remove these lenses, you can actually use them as magnifying glasses. When human eyes focus, we change the shape of our lenses, expanding and contracting our pupils. But when squid eyes focus, they change the position of their lenses in the same way that cameras and telescopes do.

Some Facts About the Giant Squid

• Giant squids live in deep oceans of the North Atlantic, the Gulf of Mexico, Hawaii, and California.
• A squid can be as long as a school bus.
• Giant squids live in deep oceans between 3000 to 6000 feet (1 – 2 km).
• The "colossal squid" is currently on display at a national museum in New Zealand. It’s the largest known squids which grow up to 46 feet in length.
• Eye of the giant squid Is10 inches in diameter. It is almost the size of a beach ball.
• They eat other squids