A long-term study using DNA from whale scat has revealed surprising complexity in the diets of southern Alaska’s fish-eating killer whales.

Orcas are among the ocean’s top predators, yet there is only one well-documented attack on a human in the wild: in 1972, a surfer was bitten – probably because he was mistaken for a seal – but ...

This month, researchers board a Sea Shepherd vessel in Antarctica's South Orkney Islands to study the overlap between krill fishing and recovering whale populations.

New research shows that, off the U.S. West Coast, humpback whales face a higher risk of getting entangled in fishing equipment during years with lower availability of cool-water habitat, where the ...

Pygmy sperm whales have a bizarre defense mechanism that is volatile, but highly effective in blinding and deterring predators.

Isotope evidence from fossil otoliths shows Caribbean reef food chains have shrunk by up to 70%, signaling a major loss of ...

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and ...