spent in South Africa; the other locations were Iceland (four days), Yorkshire (two days), Tunbridge Wells (one day) and the studio (five days). These locations in turn often included separate locations were up to four different units shot footage at the same time. In South Africa, Walking with Cavemen footage was filmed in the Southern Kalahari Desert, the Augrabies Falls National Park and the Orange River regions. Filming in the Southern Kalahari Desert proved problematic for the actors, since temperatures could reach 30/40 °C (86/104 °F) and they wore full makeup and bodysuits. The team was as a result constantly accompanied by medical professionals who provided the actors with rehydrating solutions and salts. Episodes The series was broadcast again in 2004 as a version split into two (rather than four) parts, each 50 minutes long. The new two-part version was narrated by the British actor Andrew Sachs. Reception Scientific and critical response The British anthropologist Clive Gamble gave Walking with Cavemen a positive review in the scientific journal Nature. Though finding several details questionable, such as Neanderthals being described as lacking imagination and not wearing boots, Homo ergaster not being black-skinned, and monogamy being showcased as a norm rather than a more recent concept, Gamble also felt that such criticisms missed the point of the programme. Gamble concluded that the point of the series was to introduce a wider audience to the scientific understanding of human evolution through keeping drama rather than scientific debate as the driving force and that the series had succeeded in this purpose. Gamble also enjoyed the inclusion of Robert Winston as presenter, referring to him as a "Dr Who of human evolution" who travelled through time and offered factoids and insight. Writing for the Archaeological Institute of America, the British archaeologist Paul Bahn also gave the series a positive review, praising the workmanship that went into creating the costumes and calling the landscapes featured "spectacular". Bahn noted that most of what is shown in the series is pure speculation but considered Walking with Cavemen to be "well worth a look" and particularly praised how it made humanity's long dead ancestors feel "more real and alive". Lynne Heffley of the Los Angeles Times also praised Walking with Cavemen, calling it a "fascinating exploration of human evolution". Heffley noted that the narrative at times grew "a tad overheated" and that "stiftly moving mouths" could detract from the