Sharks also wear an invisible cloak.

A small Pacific shark has developed a special way to protect itself from predators.

The first detailed study of the lantern shark ( Etmopterus spinax ) deep in the Pacific Ocean shows that this fish is not only able to glow in the dark but also the light effect. an invisible cloak protects it from the predator.

Etmopterus spinax shark species.

According to Discovery news site, research published in the Journal of Experimental Marine Marine Biology and Ecology first recorded the presence of this shark in the waters around the Japanese island of Okinawa. Previously, it was only discovered in the east of the East Sea, off the island of Taiwan and in the waters of southern Japan.

Its display of natural light, created by glowing parts called photophore , performs many functions. The invisible cloak is probably one of the most beneficial functions because it helps protect this small shark from predators below.

Julien Claes, head of research at the University of Louvain (Belgium), said: 'Phosphores replace the light coming from the sun, which is absorbed by the fish body, so the shadow of this fish disappears when viewed. bottom up'.

The luminescence ability may have evolved when the glowing shark dominated the deep sea at the end of the Bach Phan period, about 65-75 million years ago. Etmopterus spinax sharks today live at a depth of 0.2-1 km below sea level, areas with extremely low light levels.