13. They use an­gry ants to their ad­van­tage

World of Animals - - Watch Wild Dol­phins -

Some crows en­gage in a be­hav­iour called ‘anting’, let­ting ants crawl over them or pick­ing the in­sects up and wip­ing them across their feath­ers. The ants re­lease formic acid in de­fence, which the birds spread through their plumage. There are lots of sug­ges­tions for the rea­son be­hind anting, in­clud­ing de­ter­ring par­a­sites, sooth­ing skin dur­ing moult­ing, mak­ing the in­sects more palat­able and in­duc­ing a eu­phoric feel­ing.

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