Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Two male lions ...

Lions are the most social among the big cats. While other big cat species may hunt together or live in small family groups, lions form lion prides of 15 to 40 lions. These complex family structures ...

Wildlife videographer and safari guide Rob the Ranger captures the raw power of nature as a male lion from the Sala's ...

Wildebeest, zebra and humans? That’s the diet scientists say filled the bellies of two infamously bloodthirsty lions who once terrorized railroad workers. The “Tsavo man-eaters,” as the male African ...

For several months in 1898, a pair of male lions turned the Tsavo region of Kenya into their own human hunting grounds, killing many construction workers who were building the Kenya-Uganda railway. A ...

Two male lions became infamous for terrorizing and eating humans in 1898 during the construction of a railway bridge over the Tsavo River in Kenya. Now, an innovative genetic analysis of hairs trapped ...