Whale sharks known for their large size but there is more to these magnificent mammals then that! Whale sharks have a long rounded noise with a flat head with a giant mouth. They also have white colored spots and stripes. The most amazing thing about whale sharks is their size, they are the biggest species of fish. In the ocean they are giants. They also have a back big fin and tail fin. They also have big gill slits on each side. There skeleton is made of cartilage. These features make the whale shark magnificent.