Producer Tim Haines wanted to create a sequel to Walking with Dinosaurs so the general public could discover the fascinating mammals of the Cenozoic, which were less represented in popular culturethan dinosaurs. As with Walking with Dinosaurs, the film crews would go to locations that matched the depicted time periods fairly closely and shoot either empty landscapes or animatronic animals for close-ups. Sometimes it was necessary to replicate the impact the animated animals would have on their environment—such as footprints left in the snow by a woolly mammoth. The animatronics' broad movements were controlled by puppeteers, while their more subtle movements were remote-controlled and operated via servo motors. The visual effects budget was around 7 or 8 million dollars, much lower than a feature film of the time. Tim Haines attributed this to solid planning. The fur coats and moving parts of mammals made the creatures in Beasts more challenging to animate than the scaly reptiles of Walking with Dinosaurs. Short fur was animated with tricks, and long shaggy coats with fur shaders. Live actors were used for the anatomically modern humans and Neanderthals in "Mammoth Journey". In "Next of Kin", extreme close-ups of Australopithecus also employed actors wearing prosthetics. "Sabre Tooth" was shot in Brazil, where Smilodon actually roamed. Filming of the ice age landscapes for the final episode took place in Canada's Yukon Territory.
aired the series weekly on Thursday nights, with a regular of repeats the following Sunday afternoon. In 2010, the series was repeated on BBC Threein omnibus format, as three hour-long episodes.
''The Science of Walking with Beasts''
A two-episode companion documentary, The Science of Walking with Beasts, aired in November 2001 on BBC One. This series featured interviews with palaeontologists and explanations of how the fossil record and modern day descendants have informed what is known about the animals depicted in Beasts, as well as brief sections showing the development of the CGI and animatronic animals used in the series.
Release
Walking with Beasts was originally broadcast in the United Kingdom on the BBC1 from 12 November to 21 December 2001. In North America, it aired on December 9, 2001 on the Discovery Channel. The UK broadcast was the first non-sports BBC interactive programme. Beasts was released on VHS on 26 November 2001. A DVD release came the next year on 12 February for North America and 8 April in the United Kingdom. The North American release restores the original narration by Kenneth Branagh. The DVD contains several special features: two 50-minute documentaries on prehistoric life, "Triumph of the Beasts" and "The Beasts Within" ; interviews with Tim Haines; animated storyboards; a photo gallery; and several fact files on the animals featured in the series. This edition was bundled with The Complete Walking with... Collection which came out on 23 July 2002. A re-edited and re-narrated version of Beasts was presented as the second season of Prehistoric Planet, a Discovery Kids programme intended for a younger audience than Walking with...
Promotion
Beasts was promoted with a breakfast cereal tie-in from Kellogg's and the video game Walking with Beasts: Operation Salvage for Windows PCs. The soundtrack by Ben Bartlett was released on CD. An exhibition took place at the Herbert Art Gallery and Museum.
Reception
The first episode of Walking with Beasts attracted an audience of 8.5 million, 35 per cent of television viewers at that time. Critics generally enjoyed Walking with Beasts. However, there were some complaints about overbearing narration and disappointing visual effects.
Companion book
A companion book was written by Tim Haines to accompany the first screening of the series in 2001. As with Walking with Dinosaurs, the written version of Walking with Beasts elaborated on the background for each story, went further in explaining the science on which much of the programme as based, and included descriptions of several animals not identified or featured in the series.
Scientific accuracy
In the first episode, the Gastornis are depicted as carnivorous predators, which is in agreement with their perception at the time as "terror birds." However, in 2013, a scientific study suggested that the bird was probably omnivorous or a herbivore. Ambulocetus is depicted as amphibious; later studies suggest that it was fully aquatic. Ambulocetus lived in Pakistan, not Germany.
