They were overun by a more advanced tribe.
Exactly twice as advanced.
(
We are the lemon irked your craw on,
Wed 8 Oct 2008, 1:03,
archived)
IF THE FROG JUMPS HALF THE DISTANCE EACH TIME
HE'LL NEVER GET THERE OMG OMG
(
grey kid is breakdancing to save a community centre,
Wed 8 Oct 2008, 1:04,
archived)