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.
Predators. Ringneck snakes use venom to help paralyze prey animals, but they are often sought after as prey themselves. Some notable predators of the rather clandestine species are eastern screech owls, Virginia opossums, blue racers, northern coral snakes and wild hogs.