It's not unusual for an outbreak to kill an entire colony of wild prairie dogs.

NPR: Prairie Dogs Yield Bioterrorism Insight

There were the penguins, of course, an entire colony that was completely tame.

NEWYORKER: M&M World

They estimated these older colony members' "worn-out teeth" halved the speed at which the entire colony was able to harvest leaves.

BBC: Earth News - Leaf-cutter ants retire when their teeth wear out

For the entire time I never once spent the night in the colony, where all the convicts were supposed to serve their sentence.

FORBES: Corruption, Chaos, and Decay in the "Most Humane Prisons in the World" - Or, Russia's Prison System is Still a Real Mess