Africa: Lion cubs face many dangers -- even from their own species. When males take over a pride, they kill any young sired by the deposed males. This is a way to bring females into heat more quickly, and to ensure the pride's next generation carries their genes. This image is from Lion Battle Zone.
Japan: The Steller's Sea Eagle or "O-Washi" (Haliaeetus pelagicus), mainly feeds on fish, and often as a scavenger regularly pirating food from otters and other birds. This image is from Japan's Hidden Secrets.
Japan: Japanese macaques (Macaca fuscata) are the only monkeys in the world to enjoy the hot springs. The hot volcanic baths help maintain the macaques' healthy body temperature. Japanese macaques are also excellent swimmers and are reportedly able to swim distances of over half a kilometer. This image is from Japan's Hidden Secrets.
Lanai, Hawaii: White coral boulders amidst black volcanic ones are taken as evidence for a giant tsunami originating on the Big Island, which hit the island of Lanai in the past. This image is from What Lies Beneath.