New species keep dropping in

I like to chronicle, from time to time, the fact that zoological discoveries come in all sizes, and they never stop. For example, one man, Norman Platnick, a curator emeritus of the American Museum of Natural History, discovered 10 new American species from a tiny group called goblin spiders in 2010. Goblin spiders can make silk, but they eschew webs in favor of actively hunting small insects and eating them on the spot. For all you know, you may have stepped on a new species unawares on your way to work this morning.