The name of this cute Marine Giant is whale shark, the largest fish in the world. Whale shark is a distant relative of great white shark. It is 18 meters long, but it has a gentle temper. Whale sharks live in tajura Bay, where the red sea meets the Indian Ocean.
It can also dive into the depths of 1000 meters, preferring warm waters and eating a lot of plankton. Unlike whales, it doesn't need to surface to breathe, so for us, its whereabouts are mysterious.
Scientists from the society for the protection of the sea have set up an international database for them called the whale shark library, which uses a large program to count and distinguish them.
Scientists have studied a number of positioning schemes, including acoustic positioning, pop positioning and satellite positioning, but the results are not ideal.
Djibouti Marine Protection Association uses the most basic and simple positioning method - "tag positioning", that is, the positioning tag is fixed on the dorsal fin of the whale shark through the barb. Don't worry, the skin thickness of the dorsal fin of the whale shark is 11cm, which does no harm to it.
It's like they have an ID card and become a whale shark with identity. People can upload videos and pictures of whale sharks to a website called whale shark（ whaleshark.org ）To help scientists discover and understand the life habits and migration rules of whale sharks.
Whale sharks can swallow 6 tons of seawater per hour, and filter the seawater, leaving behind all kinds of plankton and other organisms over 2 cm in size.
But their population is declining year by year, which is really worrying. The meat of whale shark tastes average. It is called "bean curd shark" by Taiwanese and likes to eat its meat. People are crazy about his liver and fins.
Looking at this quiet eater, their world is becoming chaotic because of us. So cute marine life, why can't we protect it well?