A cheetah is built for explosive speed on land, not for lingering in dangerous waters. But in a striking wildlife clip from Tanzania's Mara ecosystem, a male cat made a split-seco ...

Rob the Ranger documents migrating wildebeest crossing the Mara River in a spectacular herd.

Wildlife videographer and safari guide Rob the Ranger captures the awe-inspiring spectacle of a massive wildebeest swarm braving the treacherous currents and predators of the Mara River.