Could somebody please explain the intricacies of electronica music

I'm talking the stuff you hear in gay clubs or on the two dance channels on Sirius XM. Writers include Deadmau5 (who's known more as a DJ) and Cedric Gervais (of "Molly", one of my current favourites, I even named the latest dog after it (she was rescued from a puppy mill and didn't have a name or even a collar) before somebody got around to telling me "Molly" was code).

Back in the day, I knew it as trance, garage, house, jungle and techno (not that I ever really understood the difference between them). Now there's a bewildering variety and everybody's talking about dubstep but I don't hear any real difference. I listen mostly in my truck which does NOT have subs so maybe that's got something to do with it.

Can I get some help here?

Hey, they just named a spider after me

“Meet Trogloraptor, fearsomeness incarnate,” Scientific American reported Friday, following the discovery of Trogloraptor marchingtoni, part of the new Trogloraptoridae family by a group of scientists at the Western Cave Conservancy and San Diego State University.

I just had to remind my ex-wife that balls come in different sizes