Convergent evolution is actually exceedingly common. You see so many forms of it on earth that it's as blatantly obvious as the sun. :-) Great work Internutter. Yeah I can see it happening on other words too. Heh, a world where high THC "weed" grows like grass in a lawn on a planet that's inhabitable by humans where we could live a good life? LOL there'd be a LOT of humans fighting tooth and nail to be the ones signed up for the first rocket there!