The Daily Telegraph called the most dangerous animals on the planet that threaten human life. The first three went mosquitoes, the Asian cobra and Australian jellyfish. 10th Frog Dendrobates Pumilio (Dendrobates pumilio) - 

Peace on 70% of the water we drink it, bathe in it, grow food with it, and just exist because of it. But some very dangerous waters. We present our list of lakes and rivers, which can cause a person serious harm or even kill.

Rio Tinto is one of rivers with the highest level of acidity, pH 2 at best, which is approximately equal to the level of acidity in the gastrointestinal tract of humans. This is enough to kill any fish that dares to swim in this river. In all likelihood the same faces and humans. Water is unsafe because of the special bacteria living in it. Such substances have been found on Mars, forcing scientists to think that perhaps the key to the mystery of the Red Planet is precisely in this river. It is just a pipe dream, but no doubt you will be wary of Rio Tinto as an angry grizzly bear, after all, and the river, and the animal are among those for whom a pleasure to watch, but it is better not to touch.

 As the coils wrapped around the animal squeeze ever tighter, so its vital force is sucked out, its eyes glazing over... It's the falling of a final curtain we see all too clearly in the image above, which shows a sand snake with a large rodent of some kind and about to swallow its prey. "One pair of eyes has [a] glitter of joy, the other [the] gloom of death. This is nature unplugged," says photographer, Chandan. We see what he means, yet this prey animal is small by comparison with those that are to follow...