In Shark Alley, South Africa, people often go underwater in protected environments to watch sharks in their natural surroundings. Some people believe this makes the sharks more violent. Others feel there's no change in behavior. Two researchers want to find the truth. How do they study the sharks? What do they find out?

Orangutans are animals that are similar to humans in many ways. One similarity is their ability to communicate through language. This ability is being studied in a program at a zoo in Washington, D.C. What is the purpose of this program? How does it work?

A snake park in the Sultanate of Oman has a serious problem: all but one of their snakes have died. The owner of the park has hired a 'snake detective' to uncover the mystery of the dying snakes. Why did the snakes die? Will the snake detective be able to save the new snakes?

In Argentina, there is a group of men who live a unique life; the life of a gaucho. This special type of cowboy has been continuing the old traditions for centuries. What type of lifestyle do these men have and what does it mean to be a gaucho?

Mary Lou Robertson is a young girl in Florida who has an interesting hobby; she watches birds. In fact, she loves birds so much, that at age 13, she's even writing a children's book about them. Why does Mary Lou love birds so much? How did she write a book at such a young age?