I've seen the actual fossil Tiktaalik, but it's nice to have a virtual version of my own to play with.
https://freethoughtblogs.com/pharyngula/2018/03/26/go-play-with-tiktaalik/
@pzmyers I'll never understand why these scans aren't released with printable shape files, too. You can do some much in a classroom with a bunch of printable bio models.
@DrAndrewThaler Because 3-D printers aren't commonplace, yet? I don't have one myself, but have been eyeballing a few.
@pzmyers Schools, too. Makerbot, for all its flaws, has done a tremendous job getting printers into schools.