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.
The second most spoken language is Spanish. One Native American language still spoken in the state is the Colorado River Numic language, known as the Ute dialect.
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.
Most of the time there are only minor eruptions, but every few years there are more serious eruptions. The last major eruption of the volcano took place in 2019.