forage

definition: 
(Of a person or animal) search widely for food or provisions:
sentence: 
When chimps forage for food they do not ask themselves why, or consider better alternatives any more than does a beaver consider better ways of building dams. At about 3 weeks of age workers leave the hive as foragers who gather pollen and nectar and are exposed to a more variable environment.
difficulty: 
very easy
toefl frequency: 
2
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