Animals Like Us

Like us, animals are exposed to parasites, bacteria and viruses - the germs which cause disease. How do they survive these attacks? Recent research and observation have shown that animals use plant and insect substances to treat themselves - not only do they apply things to their skin, they actually treat themselves by feeding on things not normally part of their diets.

An Indonesian legend claims that monkeys can speak but they prefer to stay quiet. Do animals have languages that we don't understand? Is it just a question of getting the right dictionary or is language the one thing that separates humans from the rest of the animal kingdom?

Man is not the only social animal. At the beginning of 2001, Franz de Waal published his work on a group of chimpanzees in the Arnhem zoo, in the Netherlands. He showed the existence of elaborate and subtle rites which, according to him, revealed a political organization.

Altruism, an act that bestows a benefit on the recipient while conferring a cost to the actor, is one of the central paradoxes of evolution. In the wild, where only the fittest survive, adopting other animals' offspring is not really in line with Darwin's theory of evolution. And yet, amongst bees, dolphins, lions and several primate species, altruism may go as far as adoption.

Recent discoveries have shown that hundreds of animal species use tools. New Caledonia crows, for instance, use twigs to remove insect larvae from their galleries; sea otters use flat stones to break open urchin shells or earshells; tailor ants weave leaves together with the threads secreted by the specie's larvae.