Along with the Missouri River and Jefferson River, it is regarded as the world’s fourth longest river.
Jefferson River is a tributary of the Missouri River, the longest river in the United States, that flows to the Mississippi River. The Mississippi-Missouri-Jefferson spans 6,275 kilometers.
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.
A single hectare of tropical forest can contain 42,000 different species of insects, up to 807 trees of 313 species, and 1,500 species of land plants (Embryophyta).
It is likely that tropical forests contain many millions of species of plants, insects, and microorganisms that have yet to be discovered.
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.
