A study found remoras, known as suckerfish, were using a less-than-comfortable place to hitch a ride: the rear ends of manta rays.

A study found remoras, known as suckerfish, were using a less-than-comfortable place to hitch a ride: the rear ends of manta rays.

Remoras are pretty weird fish, but a new study shows they really have no boundaries when it comes to mooching off their manta ray hosts.