Complex sentence: Tardigrades (commonly known as waterbears or moss piglets or "Wooly Bears") are small, water-dwelling, segmented animals with eight legs notable for being one of the most complex of all known polyextremophiles.
Split into simpler sentences: Tardigrades (commonly known as waterbears, moss piglets, or Wooly Bears) are small, water-dwelling, segmented animals with eight legs. They are notable for being one of the most complex of all known polyextremophiles.