Aristotle was uncertain whether or not sponges were animals, which in his system should have feeling, appetite, and locomotion, or vegetation, which didn't: he knew that sponges could sense contact and would contract if about to be pulled off their rocks, but they were being rooted like plants and under https://animalporn51594.wikinarration.com/6985417/5_tips_about_animal_xxx_you_can_use_today