Hepatitis B and C are spread through blood and body fluids. To cut your risk, don't share items like toothbrushes, razors, or needles. Limit the number of sex partners you have, and always use latex condoms. There's no vaccine yet for hepatitis C, but there is one for hepatitis B.
This gives their neck greater flexibility so they can turn it around to 270 degrees. They have to do this because, unlike us, they cannot move their eyeballs at all in any direction. <br /> Owls can't really turn their head all the way around. They can turn their head 270 degrees (3 quarters). Owls have fourteen vertebrae bones in their necks which is twice as many as humans. This gives their neck greater flexibility so they can turn it around to 270 degrees. They have to do this because, unlike us, they cannot move their eyeballs at all in any direction. Owls can't really turn their head all the way around.
160111-why-do-owls-bob-their-heads.mp3 If you were to stand face to face with an owl, after a while it would start to move its head, bobbing rhythmically from side to side, then forward, then back. Or almost completely upside down. All while still looking at you, with its body still facing the front.