• Bees have five eyes — two large ones that they use for seeing and three smaller ones primarily used for orientation and navigation.

• Snakes have two pairs of eyes — one pair for seeing and the other for detecting heat and movement. The dragonfly survives thanks to its eyes — as many as 30,000 lenses in its eyes allow it to detect nearby movements, thus defending itself against many predators.

• Dolphins sleep with one eye open.

• The worm has no eyes, and a scorpion can have as many as 12.

• Camels, on the other hand, have three eyelids that protect their eyes from the sand in the desert.

• The mantis, with its two large and three smaller eyes, has four times more photoreceptors in its eyes than humans do, and it can see even ultraviolet light.

• Pigeons can see millions of different shades and are among the animals that can see the largest number of shades and colours.

• Tigers can see six times better at night than humans.

• The horse has the largest eyes among all mammals. The horse and the zebra can see laterally and their peripheral vision is so well developed that they can almost see behind them. But at the same time, they have a blind spot right under their nose.