Endometriosis. Endometriosis is often the cause of rectal bleeding. If, in addition to the rectal bleeding, you experience nausea, bloating, back pain, cramping, gas pains, discomfort when experiencing bowel movements, or constipation, you should also consider this more strongly.ther Causes. Sometimes hemorrhoids cause rectal bleeding. This is true in both men and women, but the changes in a woman's body and awareness during menstruation may cause her to notice it at that time. The change in hormones can affect many things within the body.
Water deer prefer the lush vegetation that grows along river bottoms; there they eat a surprisingly large amount of coarse-fibred grasses that serve as both food and cover. The breeding season extends from early November to February, and the fawning season lasts from late April to June. Water deer give birth to several young at a time.
Diving ducks eat more fish than dabbling ducks. All ducks are omnivores, so they eat a combination of plants and animals. Some of the plants that ducks eat are grass, weeds, algae, seeds, grain, berries, fruit and aquatic plants. Some of the animals that ducks eat are snails, mollusks, worms, frogs, salamanders, small fish and fish eggs. Ducks also eat insects. One species of duck called the Merganser, eats mostly fish.