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.
The Muscovy is a large duck native to South America, Central America, and Mexico. Due to a recent northward expansion of the range of the species, there is a small natural population in three counties in southern Texas in which natural breeding of wild birds has been confirmed.uscovy ducks feed on the roots, stems, leaves, and seeds of aquatic and terrestrial plants, including agricultural crops. They also eat small fishes, reptiles, crustaceans, insects, millipedes, and termites. Muscovy ducks live alone or in groups of 4 to 12, rarely in large flocks.