22/03/2023
Animals are categorised into ecological groups depending on how they obtain or consume organic material, including carnivores, herbivores, omnivores, detritivores,[44] and parasites.[45] Interactions between animals form complex food webs. In carnivorous or omnivorous species, predation is a consumer–resource interaction where a predator feeds on another organism (called its prey).[46] Selective pressures imposed on one another lead to an evolutionary arms race between predator and prey, resulting in various anti-predator adaptations.[47][48] Almost all multicellular predators are animals.[49] Some consumers use multiple methods; for example, in parasitoid wasps, the larvae feed on the hosts' living tissues, killing them in the process,[50] but the adults primarily consume nectar from flowers.[51] Other animals may have very specific feeding behaviours, such as hawksbill sea turtles primarily eating sponges.
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