brown tree snakes are nocturnal. most of Guam's native forest birds are not. explain how this has affected both the snakes and the birds. The snakes easily find and kill the sleeping birds, and the snakes success has allowed them to reproduce quickly.
A person may have both internal and external hemorrhoids. Symptoms of hemorrhoids include occasional throbbing pain, itching, burning sensation, bright red blood on toilet paper or stool, or a lump of soft tissue protruding outside of the anus.
Hemorrhoids are veins in the wall in your rectum and anus that have become twisted, swollen, and inflamed. They can form either internally or externally, and the resulting lumps can cause pain and bleeding.f your hemorrhoids are external, your symptoms can include swelling or a lump (blood clot) around your anus. These are referred to as thrombosed external hemorrhoids, and can be quite painful. Depending on your toilet habits, you can aggravate your problem, causing additional irritation, bleeding, and itching.