Foraging

Foraging is the act of hunting or gathering food. For example, cattle forage grass to eat. The idea of animals foraging is called forage theory, and was first proposed in 1966.^[1][2][3]

Humans that forage are often called hunter-gatherers, who find and eat (wild) animals and plants without domestication of them (people who farm plants are not hunter-gatherers, as they have grown them themselves).

1. ↑ Emlen J. M (1966), "The role of time and energy in food preference", The American Naturalist, 100 (916): 611–617, doi:10.1086/282455, JSTOR 2459299, S2CID 85723900
2. ↑ Hughes, Roger N, ed. (1989), Behavioural mechanisms of food selection, London & New York, p. v, ISBN 0-387-51762-6{{citation}}: CS1 maint: location missing publisher (link)
3. ↑ MacArthur R.H. & Pianka E.R (1966), "On the optimal use of a patchy environment.", The American Naturalist, 100 (916): 603–9, doi:10.1086/282454, JSTOR 2459298, S2CID 86675558