BBC Four HD
Secrets of Skin
– 19:30
BBC Four HD ·
Secrets of Skin
Sign in to favourite this programme– 19:30 UK time
3/6. Professor Ben Garrod reveals how skin protects vertebrates from extremes of temperature, the harmful effect of UV and a host of living organisms that want to get in.
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BBC Four HD
Secrets of Skin
– 01:10