Carnivores are animals that eat other animals, and include spiders, sharks, domestic house cats and lions. Carnivores may kill other animals and then consume the carcasses, scavenge meat from dead animals they did not kill, or a combination of the two.
Spiders, with the exception of tarantulas, trap insects in an intricate web of silk spun from the spider's silk glands. Tarantulas do not use webs to capture prey; rather, they lie in wait to ambush insects, lizards or even small birds that pass the tarantula's hiding spot.
Sharks are carnivores that patrol the world's oceans in search of prey. Depending on the species, such prey may include fish, cephalopods such as squid and octopus, and other sharks. The largest predatory fish in the ocean is the great white shark. The whale shark is the world's largest fish, but rather than hunting large prey, the whale shark feeds on krill and other microscopic organisms.
The domestic house cat is an obligate carnivore, meaning that it only consumes meat. This is in contrast with the domestic dog, which subsists on an omnivorous diet. Lions, such as the African lion, are also obligate carnivores. Although it hunts animals, including gazelles, zebras and wildebeest, the African lion has also been known to scavenge meat from dead animals.