In 2011, researchers discovered two new species of freshwater stingrays in the Amazon River.
The Heliotrygon (rosai and gomesi), commonly referred to as the Pancake stingrays, is the first new genus of stingrays from the Amazon described since 1987.
There are a number of gorges on the island, such as Samaria, Imbros, Kurtaliotiko, Ha Gorge, Platania Gorge, Aradaina, and others.
One of the most spectacular unique places in Crete is the Kuraliotiko waterfall, located in the gorge of the same name. The waterfall is about 40 meters high.