Sperm whales and other toothed whales feed primarily on squids.
His herd is having to feed primarily on the pods that hang from mesquite trees.
Royal penguins feed primarily on krill; however, other crustaceans, small fish, and cephalopods are also consumed.
They feed primarily on cephalopods, including the giant squid (Architeuthis dux).
They feed primarily on insects, and they spawn in shallow water during the spring.
Some fungi, such as Pilobolus, feed primarily on the dung of herbivores.
Olingos are nocturnal, often travel in small groups, and feed primarily on fruit.
Flounders feed primarily on crustaceans, other bottom invertebrates, and small fish.
They are brightly coloured and feed primarily on plant sap, causing serious crop damage.
Since the birds feed primarily on fish, pollutants like mercury are likely to accumulate in their tissues.
Cattle feed primarily on pasture by grazing, but in modern farming their diet is ordinarily supplemented with prepared animal feeds.
