English [? m？ nt？ ] beauty [? m？ nt？ ]?

Blanket ray, double-kissed manta ray (wider than longer, found in warm waters);

[Example] The laboratory is also building robots? Manta? Ray went to study the fish resources in English fjords? Columbia University.

At the same time, researchers and technicians are still making robot manta rays to study and detect the fjords in British Columbia.

[others]

Complex number: mantas

(Illustration with drawings)