Life has a way of finding different solutions to survive and to thrive, which has led to the wonderful abundance of life that we find throughout the planet. The ocean is home to a huge array of animals, many of which are so unusual to us that they could almost appear to be alien. One such animal is the squid. In addition to being unusual, it is also very successful, and can be found in oceans all over the world. The squid has also evolved into different species that are able to make the most of different habitats. Some species are small and harmless to us. Others, however, are true giants.
Squid are very powerful hunters, and some can be very dangerous to humans. Although the largest of them live deep in the ocean where people seldom venture, other species can be found swimming alongside us. The good news is that we are not usually considered to be prey, but the larger species are still to be respected.
The more research we do, the more amazing facts we have learned about these incredible animals.
Squid Fact #10: Very Large Eyes
Many species of squid live in the ocean depths where there is little light available. This means that they need to be able to take in all the light they can. This translates to big eyes. In relationship to the rest of their body, all squid have very large eyes. The giant squid has the largest eyes of all. In fact, the eyes of a giant squid are in excess of 10 inches across, which is about the same size as a soccer ball. These huge eyes help them to absorb what little light is available in the depths. In conditions in which other species are effectively blind, the squid is able to see.
The squid’s eyes also have an unusual lens configuration. A thick lens similar to contact lenses covers their eyes. When the squid focuses, the lens is moved further or closer to the eye accordingly. It’s a system that is very effective for them.