>> the hunt is on. in a battle for survival, the lions always go for the weakest. then the lioness, reaching speeds of up to 50 miles an hour, makes her move. >> jumped on the baby, dragged it into the water. >> she's going for it. she caught him. oh, she did. she got him. did you see that? >> unbelievable. >> and you could hear the baby screaming, you really could. spiraling into the air, into the watering hole. they're trying to drag him out. they're dragging him out. >> in seconds, with an extraordinary leap. the lion snags the baby buffalo and slings him into the water like a rag doll. >> just then i saw a splash. then the other four lions came and just sort of surrounded this poor little hapless buffalo. you could hear it cry almost, when it got hit. sort of doing -- you could tell high-pitched that it was making a funny sound.