The Tabletop Whale blog by Elanor Lutz, has a focus on scientific illustration. It is a wonderful intersection of science, math and art, such as in this beautiful animation of a muscle in motion.
She has animations of butterflies and birds in motion as well.
Citing this post: Urbano, L., 2014. Art, Science and Math, Retrieved January 20th, 2017, from Montessori Muddle: http://MontessoriMuddle.org/ .
Attribution (Curator's Code ): Via: ᔥ Montessori Muddle; Hat tip: ↬ Montessori Muddle.