This is interesting, esp. as schools are cutting down recess/playtime & phys ed, and the nutritional value of the food kids eat in schools is completely inadequate. Brains can't work well if the rest of the body isn't being taken care of.
Phylogenetic Tree of Life -The OpenLearn site used to offer this phylogenetic chart in the shape of a tree as a free poster, but no more. They do have an online version of this same illustration, expandable and with links and an explanatory guide.
The Science of Getting Old Infographic. In the cell-division process, telomeres keep DNA and RNA from becoming damaged. If you’re in your chances are you’re getting grey hair. This is due to the (Grey Hair Tips)