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The diet of the Arctic tern varies depending on location and time, but is usually carnivorous. In most cases, it eats small fish or marine crustaceans . [ 10 ] [ 19 ] Fish species comprise the most important part of the diet, and account for more of the biomass consumed than any other food.
The common tern may attempt to steal fish from Arctic terns, [98] but might itself be harassed by kleptoparasitic skuas, [99] laughing gulls, [100] roseate terns, [101] or by other common terns while bringing fish back to its nest. [98] In one study, two males whose mates had died spent much time stealing food from neighbouring broods. [102]
Its diet consists primarily of small fish and crustaceans. It is very similar in appearance to the closely related Arctic tern, but it is stockier, and it is in its breeding plumage in the southern summer, when the Arctic tern has shed old feathers to get its non-breeding plumage. The Antarctic tern does not migrate like the Arctic tern does ...
Terns are generally long-lived birds, with individuals typically returning for 7–10 breeding seasons. Maximum known ages include 34 for an Arctic tern and 32 for a sooty. Although several other species are known to live in captivity for up to 20 years, their greatest recorded ages are underestimates because the birds can outlive their rings. [5]
With wildfires and increased warming, scientists say the Arctic’s tundra is now a carbon source. The region had been a carbon sink for thousands of years (NOAA Climate.gov; Arctic Report)
The U.S. Food and Drug Administration (FDA) now classifies eggs as a “healthy, nutrient-dense" food, according to a new proposed rule. Registered dietitians react to the change.
(Reuters) -Terns Pharmaceuticals said its oral obesity drug reduced weight by an average of 4.9% in an early-stage study, joining drugmakers vying for a share of the lucrative weight-loss ...
Like all Thalasseus terns, the West African crested tern feeds by plunge-diving for fish and shrimp, usually in shallow coastal and tidal waters. It usually dives directly, and not from the "stepped-hover" used by Arctic terns. Its known foods include members of the herring family, mullet, grunts, jacks, and spadefish. [5]