Our local trash company has many of the same traits as the Aardvark in the wild. Both do a lot of their work during the night time hours and they are also persistent and efficient at what they do. The Aardvark is unique to the animal world just like we are unique to the trash business.
View full size image. Step aside, Spider-Man: The world's strongest stuff isn't your silk; it's sea snail teeth. The teeth of the common limpet species (Patella vulgata) are tougher than Kevlar and stronger than spider silk, researchers report in the Feb. 18 issue of The Royal Society journal Interface.
The Mantle. Sitting on top of the outer core, we find the mantle. This layer is by far the thickest layer of Earth, about 1,800 miles thick! It also makes up about 85% of Earth's volume. Like the core, the mantle contains mostly iron, but in the form of silicate rocks. You might be surprised to learn that this rock actually moves like a fluid, similar to how silly putty moves.