Spider veins are a group of dilated veins that appear close to the surface of the skin and look like spider webs or tree branches. They are usually red or blue. Although they can develop anywhere, they are most common on the legs and face.
Toy dogs constitute the smallest variant, with a height of 8 inches and weight range of 4 to 6 pounds. A short- and smooth-haired dog, the Rat Terrier has a coat that can sport any of a variety of colors, which include white, red, fawn, black and tan, lemon, brown, blue and white, and red brindle.
Tunga penetrans is the smallest flea in the world, measuring 1 mm across. It is also known in Latin America as the nigua and bicho de pie (Spanish) or bicho de pÃ© (Portuguese), literally foot bug. Tunga penetrans is a member of the genus Tunga, which comprises 13 species.