High-resolution environmental DNA sampling reveals distinct spatiotemporal fish diversity dynamics and provides practical monitoring solutions for high-density cascade dam mountain rivers.

What if dolphins are listening in on their prey—and their prey are listening right back? Researchers spent two months eavesdropping on dolphins along Florida’s Atlantic coast, using an autonomous wave glider to capture their underwater sounds and clues about where they socialize and hunt. The study revealed distinct acoustic hotspots where dolphins gathered and socialized, and where they hunted in areas rich with sound-producing fish. The findings open a fascinating new question: Are dolphins and their prey listening to—and potentially responding to—each other?

Nanyang Technological University, Singapore (NTU Singapore) scientists have found that most coral reefs across the Indo-Pacific may struggle to grow fast enough to keep pace with accelerating sea-level rise. The study found that 76 per cent of the reef sites surveyed do not have the capacity to keep pace with projected sea-level rise under a high greenhouse gas emissions scenario, threatening coastal protection and marine habitats.