The bluespotted stingray (Taeniura lymma) on the sandy bottom of the Red Sea Martin Habluetzel / Alamy Stock Photo
With their smooth, flexible fins, stingrays are extraordinarily efficient swimmers – but their eyes and mouth stick out, which intuitively seems like it would create drag and slow them down. It turns out that these bulging faces have the opposite effect, allowing stingrays to swim even faster and more efficiently.
at the Korea Advanced Institute of Science and Technology in South Korea and his colleagues investigated how the protruding eyes and mouths of stingrays affect how they move…
