Do you like to spend your free time in nature? We freeze a little sometimes and then comes a runny nose or sore throat. At such a moment, we often drink hot herbal tea. Everyone probably knows the grandmother´s medicinal plants, such as chamomile or divisin. we can find a number of species that are beneficial to the human body in our landscape, but there are also those that are very dangerous. Can you recognize them and know their effects? Even in the animal kingdom, we can encounter species that can cause us more or less health problems. We can include a kingdom of insects, some amphibians or even fish. Fortunately, the Czech Republic is one of the relatively most safe countries in the World. But if we swim in any of the tropical areas, the spectrum of poisonous animals is extremely diverse. Whether your steps lead to exotic landscapes or even Czech forests, watching this poisonous world can help to your happy return home.