Sulci are small grooves, but there are also large grooves, and these are called fissures. Fissures divide the cerebral cortex into lobes and also divide the cerebrum into the right and left cerebral hemispheres along the saggital plane.
The ducks predator is the pelican,and,wolf, foxes, raccoons, snakes, sharks, weasels, hawks, owls, eagles, cats, dogs, rats, large fish (especially for ducklings), turtles, co â¦ yotes, Tasmanian devils, seals, killer whales, mountain lions, badgers, falcons, shoebills, storks, herons, and wolverines. duck is both predator and prey. A duck eats living organisms such as small fishes (not to mention insects and grasses), which makes it a predator.
There are many kinds of ducks and they live in different environments all over the world. They eat different things in different environmental niches. Sometimes they are grouped as dabbling ducks, diving ducks and sea ducks. There are other groups as well. If you mean domestic ducks, they are mostly descended from mallard ducks. They are omnivores. They eat about 1/3 animal and 2/3 plant matter. The animals they eat are gastropods, invertebrates (including beetles, flies, lepidopterans, dragonflies, and caddisflies), crustaceans, worms and sometimes frogs. They feed by dabbling, grazing and hunting for invertebrates on land and in the water.