1 / 5There are many animals in the world that are on the verge of extinction. For this reason, hunting these animals is considered a crime. These animals are so expensive that it is very difficult to estimate their value. 2 / 5The world's most expensive and endangered Atlantic Bluefin Tuna has been spotted in Cornwall, England. This fish is on the verge of extinction. Its hunting is banned in Britain 3 / 5If the fish is caught in a fisherman's net, it has to be released into the sea. On October 23, a man named Peter Neeson spotted several bluefin tuna in England. They could not believe their eyes when they saw this fish.4 / 5Bluefin tuna is the largest of the fish tuna species. This fish can swim very fast. The shape of this fish is like a torpedo weapon coming out of a submarine. Due to this size, it can cut long distances at very high speeds in the sea. According to experts, this fish is 3 meters long.5 / 5Tuna fish is not dangerous to humans, they have other small fish in their diet. These fish are warm-blooded and have a very high swimming speed due to the heat generated in the body.