Sir David Attenborough looks at some amazing quirks of evolution. This time, we focus on the giraffe's neck and the chameleon's tongue.
The great Sir David Attenborough reveals nature's evolutionary anomalies. Here he looks at the platypus and the curious case of the male midwife toad.
Wonders of wildlife - Sir David Attenborough shines the spotlight on amazing animals. A look at two creatures with very wrinkly skin: the mole rat and the elephant.
Ever passionate about wildlife, Sir David Attenborough lauds nature's oddities. A look at the tusk of the narwhal and the spiral shells found on snails and ammonites.
Sir David Attenborough shines the spotlight on nature's most amazing animals. David looks at the zebra's stripes and the wings of the butterfly.
