According to this article many different types of animals exhibit heroic behaviour and it is not just limited to humans. The article suggests that dolphins, monkeys, fruit bats and ants will all rescue their fellow creatures when they are in danger. Dolphins have been know to rescue trapped and injured dolphin, often lifting them to surface to help them breathe. Monkeys will drive away attackers from vulnerable individuals such as females and infants and fruit bats will help other fruit bats that are in labour. Ants will offer help to other ants from the same colony if they are caught in traps although it appears this help does not extend to individual from outside their own colony. A group of scientists is now hoping to study and document this type of behaviour in more detail to try and determine whether the animal rescuers behaviour is indeed heroic.