Spider veins are tiny, thin veins that can be seen very close to the skinâs surface. They look like red, blue, or green spider webs just beneath the skin. Sometimes they are also described as looking like marble. Spider veins are caused by a backup of blood. These become nonfunctional, âdead-endâ veins.
While the fairy fly is the worldâs smallest insect, there a few runners up! For example, the feather wing beetle is only .25 millimeters long. Some scientists think these beetles may even be smaller than fairy flies, but for now, the fairy fly is considered by many to be the âsmallest insect!â.
Main Characteristics Bumblebee Bats are the world's smallest bat, in fact they are the world's smallest mammal. They are between 29 and 33 mm (1.1 - 1.3 inches) in length, they have no tail, they have a wingspan of approximately 170 mm (6.7 inches) and they weigh 2 g (0.07 oz).nteresting Facts Bumblebee Bats are also known as: Kitti's Hog Nosed Bat Bumblebee Bats get their popular name because they are a similar size to a large bumblebee but they were discovered by the Thai biologist, Kitti Thonglongya, in 1973 and they were actually named after him.