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...study of genes began in 1900 when it was shown that genes govern inheritance in many different creatures. In 1907 it was shown that the same patterns of inheritance could account for the transmission of eye colour in humans. However, not until 1953 was the structure of DNA deduced by Watson and Crick. By the end of the 20th century, many thousands of genes had been...

...studies that have made an argument about climate sensitivity based on observations of temperatures over the past 50 years. I would not be surprised if some of the conclusions that were advertised very heavily would actually have to be revised. RH: People who are sceptical about climate change will say well look, they're just going back and fiddling the data. They didn't...

...studied palaeontology, before working as a researcher at the Natural History Museum in London. In 2003 he began work as a researcher at the BBC Natural History Unit. Since then he has filmed in more than 30 countries. He has climbed active volcanoes, sailed with traditional Polynesian navigators and explored a toxic cave with crystals the size of trees. More important to...