Can you pleae explain to me what the underlined parts mean?<br/><br/>1. zoos are striving to make thier settings match thier new role as keepers<u> of the biological </u><br/><br/><u>flame</u>. <br/><br/>2.Realistic noises <u>also snap gorillas out of stressed-induced lethargy</u>. ( here gorillas refers to the ones in zoo) <br/><br/>3. As soon as these highly endangered monkeys moved in last month, they f<u>anned out</u> and began foraging for fruit.