Among the many kinds of defense and hunting mechanisms of the animal kingdom, one of the most famous and feared is the use of venom. It is used to dissuade predators and to debilitate preys by animals of all sizes and groups. If you want to learn more about the most toxic animals in the world, keep reading. Photo by: Leszek Leszczynski https://creativecommons.org/licenses/by/2.0/ 10.- Pufferfish: Pufferfishes are widely known for their ability to inflate when they feel threatened and the fact that they have sharp spines covering their body. But if that is not enough, they have another defense mechanism. In their internal organs, they have a very strong neurotoxin called tetrodotoxin, which name comes from the name of the order formed by these fishes. When it enters the body of any animal, it blocks sodium channels of the neurons. This inhibits the generation of action potentials, which are responsible for the transmission of nervous impulses. This inevitably leads to the fa
During our existence as a species, we have found many substances with a wide variety of effects in our organism physiology and psychology. These substances are known as drugs. Some are legal, like medicines and some illegal (except alcohol and tobacco), and are known as recreational drugs. Some are artificially synthesized and others, like cannabis, among many others, are present in nature. Although recreational drugs use may seem exclusive to humans, this is not completely true. There are many examples of substance use in the animal kingdom and, in the following paragraphs, we are going to tell you about some of them. If you find this topic interesting, keep reading. Photo by: Milo & Silvia in the world https://creativecommons.org/licenses/by-sa/2.0/ 1.- Dolphins and pufferfishes: Being one of the most intelligent species in the world, it should not be a surprise that dolphins are on this list. Dolphins carry and carefully squeeze pufferfishes in order to force them to