I like the pictures, but like others, I think the design could be better. I'm viewing the pics from work, where I can download 20 MB files in a matter of a couple of minutes. The vivarium page took almost 5 minutes to load. AND it reloads the page when you click on another section and then click on the page again. So if I go to the vivarium page, then the frog page, then click on the vivaria link, I'm in for another 5 minute load time.
Also, I dislike the picture viewer. When you go to the frog page, and you click on a frog species, it pops up a javascript window with the other pics in it. If you click on a picture, you have to click on the main page picture again in order to view the other pictures. AND if you happen to brush your mouse cursor over the javascript window at any time and then out to the main page (which is very easy to do because they're so small), the window disappears.
Great pics. Awesome pics. But the presentation needs some work.