25 Facts About Sharks

#12 – Sharks Whose Eyes Glow

A huge number of Greenland sharks (Somniosus microcephalus) have parasites on their eyes that have the ability to glow in deep waters. Ocean biologists believe that Greenland sharks use those unusual glowing parasites found in their eyes to attract their prey.

Another interesting fact is that some people consider Greenland sharks a delicacy and eat them on a regular basis. However, there’s a catch about preparing these sharks. Before you can prepare a Greenland shark’s meat, you have to boil its flesh three times because it’s poisonous.