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flag Killer whales and dolphins cooperatively hunted salmon off British Columbia, researchers report.

flag Researchers have observed possible cooperative foraging between killer whales and Pacific white-sided dolphins off British Columbia’s coast, marking the first documented case of such interspecies coordination. flag Using drones and electronic tags, scientists recorded 258 foraging interactions where whales and dolphins moved in sync, with dolphins potentially guiding whales to deep-dwelling Chinook salmon using echolocation. flag Dolphins scavenged leftover fish scraps without aggression, and whales continued feeding undisturbed. flag The study, published in Scientific Reports on December 11, 2025, suggests a mutually beneficial relationship, though researchers caution the behavior’s full nature remains unproven and requires further study.

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