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Manta rays are usually 6~8feet longs and have long block skin all around their bodies.
Juvenile manta rays are ,small, but.they already have the basic form of adult manta rays. There bodies are flat, wider than long, usually round or rhomboid ,shaped like a thin disc.
Manta rays may change color at different times.the Manta ray ,or Mobile, is a flat, broad fish belonging to the family of cartilaginous fishes , manta rays. They are diamond.shaped and generally wider than length , reaching a maximum width of 8m. Manta rays have a strange look, mainly because of their survival 
over all I think we'll notice the manta rays on social media ,or the marine Museum, because  when you see something about manta rays, you want to know something about manta rays .