This set contains a load of icons of animals, from invertebrates like corals, slugs and jellyfish, including all sorts of bugs like ants, bees and beetles, to fishes, birds and mammals, plus a few mythical ones like dragon and unicorn. This set includes approximately 5275 unique icon shapes ( without counting sizes ), and all sizes: [...]
Building a Living Fence: Osage orange trees (Maclura pomifera), also called hedge apple or horse apple. For an incredibly tough, enduring windbreak that’s a major player in a local ecology, probably nothing surpasses Osage orange.
DIY Berry Picker: This berry picker is made out of PVC pipe. Heat is used to shape the plastic. Two "fingers" at the working end do the picking. The berry then falls through the pipe and lands in a plastic bag tied to the other end.
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.