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| Description: Leeches lack bristles and have a sucker at either end Many are scavengers or predators of small invertebrates Some attach to a vertebrate, pierce its skin, and suck blood –their saliva has a protein that keeps blood from clotting Picture Stats: Views: 91 Filesize: 627.49kB Height: 654 Width: 2117 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=48175 |