So I had reason recently to eyeball a geologic time chart closely, and 'twas the season where there happens to be a lot of choral music about, so I thought we'd have this little animated delight. It's performed by the North Cambridge Family Opera, composed by David Haines.

I love the animations by the kids. So wonderful! I wish we'd been doing things like this with our concert choir, but no such luck.

Someone somewhere ought to be doing a science choir. Does such a thing exist? If so, link me a link! If not, one of you choral type folks should start one forthwith.