When I lived in the US in 2007, I noticed that "Planet Earth" was dubbed by Sigourney Weaver. (This made Attenborough's reference to "Alien" when talking about ants infected by cordyceps a bit ironic) ...
I remember bits of this documentary and have searched using various terms for ages, eventually ending up here due to a similar question posted in august 2015. The 2 points which I vividly remember ...
I saw this movie maybe even a 10 years ago. In my memory the presenter had blond hairs maybe just little bit shorter than that guy from nirvana. I remember that i was tought the man was german or so ...