An additional data point is that Midewin's bison area is surrounded by a double fence - a barbed-wire one to keep the humans out and a stout steel one to keep the bison in.
The Fermilab bison used to have (probably still do) a sign in their field that said, amusingly, not to jump the fence into the field unless you can cross it in 9 seconds, because the bull can do it in 10. (grew up on the DuPage county side of Fermilab, got to take physics there too, which was awesome)
jjtheblunt|1 month ago