They’re sticking it where the sun-ray don’t shine. While remoras are known to be rather clingy, some are getting too close for comfort by diving into manta rays’ backsides, per a scientific probe in the journal Ecology and Evolution. “These fish are heading up right into some manta ray rear-ends,” lead author Emily Yeager, a marine researcher at the University of Miami, exclaimed on the Canadian Broadcasting Corporation radio show “As It Happens.” Known as “cloacal diving,” the “uncomfortable”