Assessing the age of a living tree is straightforward enough—just extract a core from the tree's circular trunk and count the number of lines in the core formed by the tree's annual growth rings.

The Evolution Lab contains two main parts: Build A Tree ... Deep Tree: Students explore an interactive tree of life and trace the shared ancestry of numerous species. Deep Tree helps students ...

It might not be as popular as ancestry.com, but MacFamilyTree ... you’ll get everything you’d expect from a family tree app, ...