[diggan]

Compared to the alternative of the species not surviving at all, it seems like the better option :)

Besides, it seems like they think it's genetically healthy, so doesn't seem like a problem. I'm assuming they've verified this somehow.

> Today, the Texas A&M researchers report that the Yellowstone bison population appears to be functioning as a single and genetically healthy population that fluctuates between 4,000 and 6,000 individuals.

[nonethewiser]

> Compared to the alternative of the species not surviving at all

How about compared to two distinct herds?

[casenmgreen]

Getting that "living on top of a volcano" risk feeling :-)