In research methodology, the words proposition and hypothesis are often confused, and are often used with slightly different shades of meaning by different authors. However, the most popular view is that based on the existing literature in a field, a theory is built.
14 Where they live On a global scale, the sea eagle extends across the northern hemisphere from Siberia and Japan to Europe, and south to the Mediterranean and the Middle East. It is replaced by the bald eagle in North America, although it is the sea eagle that has colonised the southwest coast of Greenland.
The bald eagle (Haliaeetus leucocephalus) is a member of the sea and fish eagle group. Its closest relatives, similar in appearance and habit, are found in Africa and Asia.Bald eagles live along the coast as well as by major lakes and rivers.he bald eagle (Haliaeetus leucocephalus) is a member of the sea and fish eagle group. Its closest relatives, similar in appearance and habit, are found in Africa and Asia.