Supernatural: The Unseen Power of Animals - BBC - Andrew Sachs

From Wikipedia

Supernatural: The Unseen Powers of Animals, also called Supernature, is a six-part British nature documentary television miniseries that was produced by John Downer Productions and commissioned by the BBC Natural History Unit, the same team behind the earlier successful shows Supersense and Lifesense. The program was narrated by Andrew Sachs and originally broadcast in the United Kingdom on BBC1 in 1999. The theme of the series was "the unseen power of animals."

This was the only season for the show.