Probably: our relatives ate them all! There's basically no corner of our planet, from the hottest volcanic ocean vent to the coldest ice at the poles, to the highest clouds in the air, where our relatives don't live.
Of course, it has taken us about 1/4 the lifetime of the entire universe to get this far, so YMMV. :D
The reason I don't buy that line of reasoning is: The Lions eat the Gazelles, yet there are still Gazelles out there. Also, Gazelles and Zebras share the same land, and one hasn't starved the other of resources. And I don't think that is is just because they came from the same single-celled ancestors that make them able to share the same space. In the same way, I would expect other independent biogenesis lifeforms to still be represented (or new ones popping up periodically).
Can't quite tell if you're serious or joking. In case it's the former: the ClojureScript compiler is implemented in Clojure, which runs on the JVM. The compiled code is Javascript, which doesn't require the JVM. There have been some discussions about making the compiler hostable from Javascript as well, but it's not possible just yet.
Am I the only one pained that none of the favicon, the "KNOOP" title, the links on the right, or the article's hyperlinks matched #FF4A00, or even eachother, even before I saw it? :D :D
Nice eye. I think over time the color got subtly shifted by a few percentage points here and there. Nonetheless, the color you see today is directly influenced by that early random decision.
So, um, thank you, NSA! :P