Why are there so many hair colours?

The variety of hair colours that we find among humans is due to mutations in some of our genes.

Ciència recreativa

Recreational science

The purpose of this monograph is to introduce and promote recreational science and its uses to the general public. Deadline for submission: 15 June 2023.



The jellyfish Turritopsis dohrnii is capable of rejuvenation. Ferran Martin reminds us that, unfortunately, it is not the only «immortal» thing we can find in the ocean.


Social evolution

To talk about life is to talk about cooperation. In a world dominated by Darwinian competition, how has cooperation come to play such an important role?


Are viruses alive?

The scientific community agrees that viruses are not alive. However, the idea sparks some debate because it depends on how we define life.


Why do we age?

Ageing occurs because we divest energy from ourselves and into reproduction, so we have less available to survive.

Valenciolenda fadaforesta

The underground world, a source of biodiversity

The description of the «Valencian wood fairy» or Valenciolenda fadaforesta (Hoch & Sendra), a new species and genus, was recently published.


The perfect couple

Humans, unlike some animals, do not base their mating choices exclusively on genetics. There are many cultural and social determinants.


What’s wrong, are you feeling unwell?

Sickness behaviours are far from being exclusive to humans; they have been found in virtually all animals in which they have been studied.


Capsaicin mon amour

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