Since filming we've learned that one orphan, Mweiga, has lost her struggle to survive. Find out more on the David Sheldrick website.
Find out more with bbc.co.uk
Elephants up close From its long memory to its unique and extraordinary shape, take a close look at what makes the elephant such a successful mammal.
Elephants on the edge Is Nelly heading for an elephants' graveyard? Find out why they're in danger and what you can do to help.
Trunk calls How do elephants communicate across such large territories? Charlotte Uhlenbroek demonstrates long distance calling in Talking with Animals.
Big Cat Diary More African wildlife dramas from the Big Cat Diary crew, as Jonathan Scott follows the daily lives of Kenya's best-loved big cats.
Wild Africa Take a trip across the vast continent of Africa, home of the African elephants and follow a year in the life of a film crew.
TV Programmes - BBC One
Programme details More about the series, programme times and links to more information
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Wildfacts Find the facts and figures on the world's largest land mammal
