LifeDolphins who are hand-fed by tourists are less social than their peers Tourists can hand-feed some dolphins around the coast of Australia, but dolphins fed this way are less likely to form strong social bonds with their peers 51¶¯Âþ
LifeBats can remember sounds they haven't heard for more than 4 years Animals known to be highly intelligent, such as ravens and chimpanzees, have good long-term memory – and now it seems that some bats do too 51¶¯Âþ