Before I went on safari, I sought advice on what to take from every source I could find--discussion boards, books, friends who had done a lot of nature photography. . .
Over and over, I was advised to take the longest lens I could, and to get a teleconverter to extend that lens even further. I listened to this advice, and it turned out to be useful.
What I always never heard, though, was the suggestion that I take a wide angle lens. The advice I got (or at least the advice I listened to!) was all about capturing animals.
At the last minute, I decided to pack my 17 - 40 lens. With the conversion factor in my camera (1.3), this wasn't super wide angle, but it was the broadest field of view that I had.
I am SO GLAD I made that quick decision. As the couple photos I have included in this post show, there are plenty of times on safari when you want to capture the big picture. The landscapes are stunning. Beyond that, you might want to capture animals in groups, rather than simply in close-ups.
So, my advice? Pack your widest angle lens, too. It won't weigh nearly as much as a long telephoto, and you will be reaching for it often.