A lioness in Kenya's Maasai Mara National Reserve has become a surrogate mother to a baby wildebeest. The lioness spotted the calf being chased by a pack of hyenas and decided to protect it. The surprising bond between the lioness and the wildebeest has left experts puzzled, as lions are known to prey on wildebeests. The lioness has spent several days guarding the calf and even broke up confrontations with other lions. The wildebeest seems unharmed and well-fed, thanks to its unlikely protector.