Complex sentence: The species predominantly takes various fish as prey, although crustaceans, cephalopods and molluscs make up a considerable part of their diets in some regions, footage released in 2017 on Blue Planet II showed a grouping of giant trevally hunting birds.
Split into simpler sentences: The species predominantly takes various fish as prey, although crustaceans, cephalopods and molluscs make up a considerable part of their diets in some regions. Footage released in 2017 on Blue Planet II showed a grouping of giant trevally hunting birds.