2 Entertain ; BBC ; BBC Earth ; a BBC/Discovery Channel/France Television co-production ; series producer, Dale Templar ; executive producer, Brian Leith ; BBC Productions Bristol/Wales
narrated by David Attenborough ; producer, Justin Anderson ; series producer, Karen Bass ; a BBC/Discovery Channel co-production in association with Wanda Films ; BBC Earth
created by Simon Fuller ; produced by John Downer and Simon Fuller ; directed by John Downer ; produced by XIX Entertainment and John Downer Productions for the BBC, the Discovery Channel and BBC Studios Distribution
BBC Earth ; narrated by David Attenborough ; producer, Tom Hugh-Jones ; series producer, Rupert Barrington ; a BBC/Discovery Channel/France Televisions/Open University co-production