To learn more about this topic, start your googling with these keywords: Exoskeleton: a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection. Endoskeleton: an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates. Leverage: the exertion of force by means of a lever or an object used in the manner of a lever. Square-cube law: a mathematical principle, applied in a variety of scientific fields, which describes the relationship between the volume and the surface area as a shape's size increases or decreases. MinuteEarth is produced by Neptune Studios LLC https://neptunestudios.info If you like what we do, you can help us! - Become our patron: https://patreon.com/MinuteEarth - Buy our merch: http://dftba.com/minuteearth - Buy our book: https://minuteearth.com/books - Sign up to our newsletter: http://news.minuteearth.com - Share with your friends and family - Leave us a comment (we read them!) Learn more about your ad choices. Visit megaphone.fm/adchoices
