Scientists discovered the 1-foot-long animal while aboard a submersible several miles deep in the Pacific Ocean. Take a look.

Co-directed with filmmaker Khaled Abdulwahed, Purple Sea is assembled from the extraordinary images captured during the period she and the other passengers spent trapped in the water. Adrift on the ...

The animal is considered a keystone species for some places: its disappearance would have a profound impact on the diversity of wildlife in the local environment. This is because purple sea stars are ...