Imagine you were on the upper side of the ha-ha.. Until you were very close to it, you might not see it.. it would look as the field you were in, and the one the sheep was in were the same..

Now days, zoo's use ha-has all the time to create "fence-less" enclosers for animals.. so in the bronx zoo, from several vantantage points, it looks like the lions, zebras, and antelope all share the same space. Create use of ha-has keeps them seperate, and creates a very natural looking environment! (i bet it frustrates the lions!)

I suspect the San Diego zoo, and other zoo's use the same trick, Philadelphia zoo, and Seattle zoo have in their newest exhibits.


my other obsession