Scavengers are animals that consume dead organisms that have died from causes other than predation. While scavenging generally refers to carnivores feeding on carrion, it is also a herbivorous feeding behavior. They play an important role in the ecosystem by consuming dead animal and plant material. Decomposers and detritivores complete this process, by consuming the remains left by scavengers. Ex: Carrion Beetles, Earthworm, Wild dogs, Vultures and Hyenas., Etc.
And They are a part of the food web, a description of which organisms eat which other organisms in the wild. Organisms in the food web are grouped into trophic, or nutritional, levels. There are three class in trophic levels. Autotrophs are produce their own food, are the first trophic level. These include plants and algae. Herbivores, or organisms that consume plants and other autotrophs, are the second trophic level. Scavengers, other carnivores, and omnivores, organisms that consume both plants and animals, are the third trophic level.
They are play an important role the food web. They keep an ecosystem free of the bodies of dead animals, or carrion. Scavengers break down this organic material and recycle it into the ecosystem as nutrients. Some birds are scavengers. Vultures only eat the bodies of dead animals.
Some mammals are scavengers. Hyenas are often thought of as scavengers, but are also traditional carnivores. A lone hyena feeds mostly on dead animals. Hyenas may consume an animal that has died of injuries, or it may steal meat from another carnivore, such as a lion. A pack of hyenas, however, will work together to hunt antelope and other creatures.