Top 13 Reasons Tardigrades Are Super Animals

4. Tardigrades have been living on Earth for about 530 million years.

5. Tardigrades are tiny, microscopic animals with segmented bodies. They reach about 0.5 to 1 mm in length. They have four pairs of legs, each with 4-8 claws resembling bear claws. For this feature, they are often called “water bears” or “moss piglets,” as they are often found in moss.