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.
While all ducks are regularly omnivorous and will try many different foods that may be available, the exact diet any duck follows depends on several factors, including: 1  Species: Some ducks are specialized for particular types of food, such as mergansers with narrow, toothed bills that eat primarily fish.oods Ducks Eat. Wild ducks eat a wide range of different foods and they are constantly foraging for meals and snacks. Foods ducks regularly eat include: 1  Small fish and fish eggs. 2  Snails, worms and mollusks. 3  Small crustaceans. 4  Grass and weeds.