Killer whale Killer whale The killer whale or orca ("Orcinus orca") is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. Killer whales have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and other species of dolphin. They have been known to attack baleen whale calves, and even adult whales. Killer whales are apex predators, as no animal preys on them. A cosmopolitan species, they can be found in each of the world's oceans in a variety
Smooth-toothed pocket gopher move the traps. Toxic bait can also be used, but involves a different trap placement strategy. Fumigation is usually unsuccessful because gophers can quickly seal off their burrows at the first whiff of fumes. The exception to this is fumigation with aluminum phosphide; however, this can only be used by a professional. Gas explosives and flooding have commonly been utilized to force gophers from their burrows, and while sometimes successful, are not guaranteed to achieve full eradication. Smooth-toothed pocket gopher The smooth-toothed pocket gophers, genus Thomomys, are so called because they are among the only pocket gophers without grooves on