Meet Snowflake, the only albino gorilla on earth. He lived an amazing life with his many children at the Barcelona Zoo.

Rain started pouring down ... help replenish the population of surviving mountain gorillas. Perhaps we will find—we may hope, at least—that the gorillas' own strategies of group growth ...

a smaller and more energetic cousin of the mountain gorillas found a few hundred miles east. One of Uganda's best national parks, Queen Elizabeth feels a world away from the volcanoes and rain ...