Oh, don't get me started.
I am sure it is true that elephants need more space than the zoo was previously providing. But there are two ways you could solve that problem: Either build a huge expensive new exhibit, or decide that in a zoo that's in the middle of a major city, you just don't have room to keep elephants.
What drives me crazy is that with the millions that are going to this exhibit, we could have set up breeding programs for many of the frog species that are going extinct. We could be saving entire species instead of a just giving a few individual elephants a nice place to live. (If you don't know about the frog extinction issue read
this.)
The party line at zoos is that they are important because they are in the forefront of conservation. This is sometimes true. But I don't see how keeping a few elephants in the middle of Washington DC contributes to that. The stock answer is that people need to be educated to care about animals, and that is true to some extent. But it's not like people don't know about elephants. I suspect that the real issue here is simply that the public expectation is that if they go to a major zoo, they will see elephants. And the zoo doesn't have the confidence to violate that expectation.
This seems like a bad use of limited funds, to me. But no one asked me.
The giraffes have been gone for quite a while, by the way. I don't know if they are planning to get any back when the exhibit is done.