Institute of Marine Sciences of Andalusia (ICMAN-CSIC)

With summer, the presence of these gelatinous creatures on the Spanish coasts bothers swimmers, who can suffer injuries if they come in contact with them. Are there more jellyfish than before? Which ones are the most dangerous? What should I do if one stings me? How can I avoid it? In this guide, we answer the main questions on jellyfish so you know how to act. 

The risks of ultraviolet radiation are well-known: it can cause everything from burns and spots to immune system alterations, cataracts, infections, and skin cancer. We need to protect ourselves from the sun, but do we really know how to do it? What is myth and what is reality? We answer the main questions when it comes to using sunscreens.