Lioness defending her cubs - Big Cat Diary - BBC

Tamu, a lone lioness, faces an attack by a rogue male lion who is intent on killing her cubs. Heart-stopping moment from series eight of the BBC's Big Cat Diary team. Visit http://www.bbcearth.com for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here: http://www.youtube.com/bbcearth