▁problem ▁is ▁made ▁more ▁problem atic ▁by ▁the ▁difficulties ▁in ▁testing ▁for ▁emot ions ▁in ▁animals . ▁What ▁is ▁known ▁about ▁human ▁em otion ▁is ▁almost ▁all ▁related ▁or ▁in ▁relation ▁to ▁human ▁communication . ▁ ▁Scient ific ▁approach ▁In ▁recent ▁years , ▁the ▁scientific ▁community ▁has ▁become ▁increasing ly ▁support ive ▁of ▁the ▁idea ▁of ▁emot ions ▁in ▁animals . ▁Scient ific ▁research ▁has ▁provided ▁insight ▁into ▁similar ities ▁of ▁phys i ological ▁changes ▁between ▁humans ▁and ▁animals ▁when ▁experien cing ▁em otion . ▁ ▁Much ▁support ▁for ▁animal ▁em otion ▁and ▁its ▁expression ▁results ▁from ▁the ▁notion ▁that ▁feeling ▁emot ions ▁doesn ' t ▁require ▁significant ▁cogn itive ▁processes , ▁rather , ▁they ▁could ▁be ▁motiv ated ▁by ▁the ▁processes ▁to ▁act ▁in ▁an ▁adapt ive ▁way , ▁as ▁suggested ▁by ▁Dar win . ▁ ▁Rec ent ▁attempts ▁in ▁studying ▁emot ions ▁in ▁animals ▁have ▁led ▁to ▁new ▁constru ctions ▁in ▁experimental ▁and ▁information ▁gather ing . ▁Professor ▁Marian ▁Daw kins ▁suggested ▁that ▁emot ions ▁could ▁be ▁studied ▁on ▁a ▁functional ▁or ▁a ▁mechan istic ▁basis . ▁ ▁Daw kins ▁suggests ▁that ▁merely ▁mechan istic ▁or ▁functional ▁research ▁will ▁provide ▁the ▁answer ▁on ▁its ▁own , ▁but ▁suggests ▁that ▁a ▁mixture ▁of ▁the ▁two ▁would ▁yield ▁the ▁most ▁significant ▁results . ▁ ▁Function al ▁Function al ▁approaches ▁rely ▁on ▁understanding ▁what ▁roles ▁emot ions ▁play ▁in ▁humans ▁and ▁exam ining ▁that ▁role ▁in ▁animals . ▁A ▁widely ▁used ▁framework ▁for ▁view ing ▁emot ions ▁in ▁a ▁functional ▁context ▁is ▁that ▁described