What’s killing killer whales?

Pathology reports on more than 50 killer whales stranded over nearly a decade in the northeast Pacific and Hawaii show that orcas face a variety of mortal threats — many stemming from human interactions.
Latest Science News — ScienceDaily

Secret surfing life of remoras hitchhiking on blue whales

A new study of blue whales off the coast of California has given researchers the first ocean recordings of their famous hitchhiking partner — the remora — revealing the suckerfish’s secret whale-surfing skills as well as their knack for grabbing the most flow-optimal spots while riding aboard the world’s largest vertebrate.
Latest Science News — ScienceDaily

Scientists listen to whales, walruses and seals in a changing Arctic seascape

A year-round acoustic study of marine mammals in the northern Bering Sea is providing scientists with a valuable snapshot of an Arctic world already under drastic pressure from climate change.
Latest Science News — ScienceDaily

Why do beaked whales return to a Navy sonar range despite frequent disturbance?

Using data from underwater robots, scientists have discovered that beaked whales prefer to feed within parts of a Navy sonar test range off Southern California that have dense patches of deep-sea squid. A new study shows that beaked whales need these prey hotspots to survive, and that similar patches do not exist in nearby ‘sonar-free’ areas.
Latest Science News — ScienceDaily