10 Things I’d Tell Darwin

Well, not me! I have nothing really to say to Darwin other than to offer my sincere apologies to him on behalf of the people who have completely ignored his work and dismantled certain dog breeds to a point of crippled distress.

However, given the increased awareness and – more importantly – the desire to become more aware by many more dog lovers about the role of genetics and evolution in relation to our canine friends, this is a fascinating item that is likely to interest many.

Movement
Muscle is the invention that sets us animals apart. Yet the two molecules that make muscles work, the chain-like proteins actin and myosin, are found in all organisms, even those without any muscle. Nothing would have given Darwin more pleasure than the finding that the same molecules that power muscular contraction evolved from simpler forms that propel amoebae around, support plant cells, and help bacteria to divide. Or that they they work by forming a dynamic scaffold in cells in the same way that a variant form of haemoglobin does when it distorts red blood cells in sickle-cell anaemia. Selection fashioned such spontaneous quirks into the might of muscle.

Read the full item here

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