Veterinarian Kathleen Alexander is studying mongoose populations in Botswana to understand how tuberculosis is transmitted and how prevalent the disease may be.

Most of the mongooses in Chobe National Park sport GPS collars that record their movements.

"Following them on foot is just not possible because of all the elephants and lions," Alexander said.

Mongooses' movements will give clues about their predators and other animals they interact with.

• More Photos in the News
• Today's 15 Most Read Stories
• Free Email Newsletter: Photo of the Month