Why does wards stop creeps spawning? / Corpse Kill Time for Neutral Respawn

[Barahng]

I think the neutral corpses take a bit longer than 17s to go away, actually...

I finished the last creep in the creep camp at x:40 and the camp didn't respawn. The one after did, however.

Was just basing it off of the DotA mechanic, which I'm positive is 17. One isolated incident isn't necessarily evidence of either though. I'll do some in-depth testing later today.

Edit: Just did some rudimentary testing, it appears to be 20-21 second for a full corpse despawn. Will post screens if I get the time later today.