Survivor count: 47,958.
Cylon Raiders are bio-mechanical, their innards composed of organic tissue and even use oxygen suitable for humans.
The introduction card on Caprica states that this episode takes place the day following that of "Act of Contrition". However, the episode begins shortly after the episode, within hours, maybe even minutes.
Boomer: Galactica, Boomer. Hot Dog's aboard.
Crashdown: Yeah. So is his lunch. Look, take it easy, Hot Dog. You're not the first to lose it in combat. You won't be the last.
Kara: Lords, it's Kara Thrace. I'm runnin'... runnin' a little low on O2 and I could use a lucky break. No? OK, just thought I'd mention it.
(a panel on the Raider opens to reveal its meaty innards)
Kara: Frak me. Are you... alive?
Kara: (to the Raider) You stink, but you are one hell of a flying machine!
Adama: Kara was family. You do whatever you have to do. Sometimes you break the rules.
Lee: And if it was me down there instead?
Adama: You don't have to ask that.
Lee: Are you sure?
Adama: If it were you, we'd never leave.
Kara: Like my new toy?
Lee: Boy, when you take a souvenir, you don't screw around.