What kind of camera do you use?
For my trip to Madagascar, my primary camera was the Konica Minolta Dimage A2. The camera proved durable (between the heat, humidity, and dust in various parts of Madagascar) and the battery life was respectable. I was especially impressed with the anti-shake (image stabilization) technology that makes pictures crisper especially when using the telephoto. I would highly recommend the Konica Minolta Dimage A2 for anyone from beginners (many auto-features if desired) to advanced photographers.