The order Primates includes more than three hundred species, among which are us, human beings. Perhaps that is why we are so fascinated by their study.

On Darwin Day, we look at some aspects of the biography of the English naturalist with historian of science Janet Browne.

Every species' mate choice is determined by what individuals consider beautiful. Beauty has a biological meaning shared by many species.

Some mammals experience a feeling of soft pain when tasting fruits with capsaicin. This mutation has survived with the evolution of mammals.

We need to rethink many aspects of our daily lives, of our values, of our economic and cultural practices; in short, of our coexistence with the rest of nature and, especially, of our respect for non-human animals.

The history of coronaviruses as human pathogens dates back to the mid-1960s, when they were first isolated from respiratory tract samples extracted from adults with symptoms of the common cold. Currently, seven types of coronavirus are known to infect humans.

Understanding what separates us from the rest of the animal kingdom is an old obsession of ours. The most frequent attribute we rely on to justify our supposed superiority is intelligence. Yet, how are we to compare the intelligence of species as different as humans, octopi or dolphins?

Alberto Tinaut, biologist specialised in the study of ants, explains the secrets of these winged insects.

The contents of issue 103 of Mètode are devoted to the evolutionary scenarios to decode biodiversity.

Exploring the diversity of ways in which different organisms cope with it can lend us novel insights on the biodiversity that surrounds us.