blood vessel-a vessel in which blood circulates. vein, vena, venous blood vessel-a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary vein carry unaerated blood. venous blood system, venation - (zoology) the system of venous blood vessels in an animal. lymph gland, lymph node, node-the source of lymph and lymphocytes. vascular system-the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant. fetal circulation, foetal circulation-the system of blood vessels and structures through which blood moves in a fetus.
Squirrels are dangerous, not necessarily to humans but to their property. Squirrels will chew through and damage the structure of homes and personal property, including electrical wiring, which is a fire hazard.
Red Squirrels have a sweet tooth. They may bite into the bark of sugar maples to start sap flowing, and then wait till the water evaporates and the sugar content goes up to about 55% (when fresh the sap is ~2% sugar). Squirrels can eat a variety of poisonous plants and mushrooms (like amanitas) without getting sick. Baby squirrels are called kittens. In the original folktale, Cinderellaâs slippers were made of squirrel fur, but a mistaken translation turned them to glass. A camelâs hair brush is really made out of squirrel fur.