Is it true that Candiru fish can swim upstream into your urethra?

Is it true that Candiru fish can swim upstream into your urethra?

The Amazon is the largest river in South America, as well as a notorious candidate for some of the deadliest fish found in the world. It is home to about 2, 500 species of animals. From the largest freshwater fish, the Arapaima, to the famous red-bellied piranha, with gnashers sharp enough to … Read more