Gasteracantha

Lung fish form a strange group of very primitive fish that can breathe from the air. All the living species of this group live in the southern hemisphere of the planet and, as aquatic animals, their biology is very determined by this means. Dipnoi or pulmonary fish are a group of fish belonging to the sarcopterygii class, where fish with lobed or muscular (fleshy) fins are classified. To date, six species of lungfish are known, which are grouped into two families. The Lepidosirenidae and Ceratontidae...

We've all heard the expressions "sweating like a pig" or "I'm sweating like a pig" sometimes. We've probably used it ourselves. But are you sure that the expression corresponds to reality? Is it true that pigs don't sweat? If popular myths are based on real facts or if it is just an exaggeration or a false belief about pigs. So why don't pigs sweat? We have to know that these mammals lack the sweat glands responsible for the generation of sweat (which we humans do). For this very reason a pig cannot sweat...

It's time to talk about animals once considered legendary. Try to imagine what the sailors of the 1500's had to think about being in front of an angry hippo. It was certainly easier to imagine him as a monster born from hell. Here are some practical examples. Giant squid Giant squid can reach a length of 13 metres: from the caudal fin to the end of the two long tentacles. Giant squid tales have been common among sailors since ancient times and may have led to the Norwegian kraken legend. It is thought...

Increasingly worrying reports continue to spread about the decline in the bee population. Ecological groups, knowing the importance of bees, continue to put pressure on governments to protect them. Government institutions prohibit only part of the products that are toxic to bees. Besides, climate change continues to accelerate and the habitat in which bees live continues to decline. Role of bees Bees are hymenoptera insects of the Apoidea super-family, as well as another important pollinating insect, the hornet...

Did you know that the longest animal in the world is a jellyfish? It is the Cyanea capillata, most commonly known as the lion's mane jellyfish, and is even longer than the blue whale. The largest specimen known to exist was found in 1870 on the coast of Massachusetts. Its bell (or umbrella) was 2.3 meters in diameter and its tentacles reached 36.5 meters in length. The common name, jellyfish lion mane, comes from the physical appearance and similarity it has with the mane of the king of the forest...