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.
The Kittiâs Hog-Nosed Bat has a very unique look to it. The fact that is so tiny also encourages the other name it is frequently called by â Bumblebee Bat. It is the smallest of all the species of bats that are in the world and it is also one of the smallest mammals in the world.he fact that is so tiny also encourages the other name it is frequently called by â Bumblebee Bat. It is the smallest of all the species of bats that are in the world and it is also one of the smallest mammals in the world.