How to tie your running shoes to fit your feet better. a podiatrist showed her this trick! wow - the high arches, vs. wide foot tie is fantastic. Also narrow foot and heel slipping ties. -- The wide foot tie really helped me
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.