Fauna of Europe of the Baltic Sea has led to the evolution of many slightly divergent species, such as the Baltic Sea herring, which is a smaller variant of the Atlantic herring. The most frequent benthic species are "Saduria entomon" and "Monoporeia affinis", which is originally a freshwater species. A great part of its bottom is anoxic and without animal life. The Baltic Sea and North Sea are also home to a variety of marine mammals (common seals, grey seals). Europe contains several important freshwater ecoregions, including the heavily developed rivers of Europe, the rivers of Russia, which flow into the Arctic, Baltic,
History of the west coast of North America official visit by the British would be some two hundred years later, Drake's action and Cabot's original claim in 1497 were the foundations of British claims to portions of the west coast of North America in the late 18th century. One of the most important consequences of these claims is that charters for the British colonies on the Atlantic coast went from sea to sea, and this was the foundation of the United States claim to its current territory. While the Spanish had dominated development on the west coast of North America for over 200 years since the early 16th