DNA Decodes the Dining Preferences of the Shell-Shucking Whitespotted Eagle Ray

With mighty jaws and plate-like teeth, the globally endangered whitespotted eagle ray can pretty much crunch on anything. Yet, little information is available on critical components of their life history in the U.S., such as their diet.

Crushed Clams, Roaming Rays: Acoustic Tags Reveal Predator Interactions

Inspired by clam fishermen reports, researchers used passive acoustic telemetry to gauge the interactions between two highly mobile rays. They monitored the tagged rays in the wild over two years to see how often and when they visited clam leases. Results provide both good news and bad news for clammers. Rays spent even more time in these clam lease sites than clammers reported or suspected, but it’s not necessarily where they prefer hanging out.