High blood pressure symptoms, signs and risks. High blood pressure, or hypertension, doesnât usually cause any obvious symptoms. The British Heart Foundation estimates that up to 5 million people in the UK have undiagnosed high blood pressure. Left untreated, hypertension can lead to serious diseases, including stroke, heart disease, kidney failure and eye problems.
Quick Answer. The northern ringneck snake is a bluish-black snake that grows to approximately 2 feet in length and lives throughout a sizable portion of North America. The morphology of the ringneck snake varies slightly in terms of coloration, with olive and brown varieties living in certain areas. Continue Reading.
It is a distinctive snake with large eyes, a broad head and thin neck and long slender body. Its body colour is brown to bright reddish-brown with many irregular, dark cross-bands. Its belly is cream to salmon-coloured. The brown tree snake grows to an average length of 1.5 metres (m), reaching a maximum of 2m.