I know why my eyes are as big as a basketball

Giant squid living in the dark bottom of the ocean can still detect the smallest light created by whales up to 120m away.

>>>New Zealand caught the giant squid

The giant sea level has large basketball-like eyes to detect predators.

Giant squid that lives on the ocean floor has long been one of the most mysterious creatures on the planet. Each squid can be as heavy as the five grown men combined. Although the swordfish has the same weight, but the swordfish diameter is only about 7.5cm, equal to 1/3 of the giant squid eye.

A New Zealand fisherman caught a giant squid
weighs up to 450kg in 2007. (Source: Daily Mail)

Biologist Sonke Johnsen of Duke University (USA) and colleagues measured the amount of light in the ocean floor, the habitat of giant squid, 300 - 1000m from the surface.

By mathematical models, the researchers found that the eyes of this giant creature help them gain more light than animals of similar body size but have smaller eyes.

Huge ink of 9.2m long caught in Norway in 1954.

When moving, the whale makes the plankton move and emit light. The eyes of the squid detect these very dim light from distances up to 120m to help them hide in time.