Whale Shark - The World's Biggest Fish
A good look at an uncharacteristic mouth for a shark
At 46ft (14m) or maybe even bigger, the whale shark is the largest fish in the sea. The average length is about 26ft long. The whale shark is not a whale, it is a shark, but it is quite different than most other sharks in the way that it eats. It has a very large mouth in front, a big square head and distinctive coloring. They have little eyes, big gills, six ridges along their backs and pale white dots evenly spread about the body with a white belly.
This unlucky specimen shows how its skin can be 4 inches or thicker
This animal is a filter feeder, eating plankton and krill, straining water through the filters on its large gills (5 on each side). They can gather enough micro-organism food like this to be the biggest fish in the ocean, and can weigh as much as 15 tons. They do eat some small fish and squid also.
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