Fastest Evolution Ever Observed

An inter­na­tion­al team of researchers has doc­u­ment­ed a remark­able exam­ple of nat­ur­al selec­tion in a trop­i­cal but­ter­fly species that fought back — genet­i­cal­ly speak­ing — against a high­ly inva­sive, male-killing bac­te­ria.Hypolimnas_male

With­in 10 gen­er­a­tions that spanned less than a year, the pro­por­tion of males of the Hypolim­nas boli­na but­ter­fly on the South Pacif­ic island of Savaii jumped from a mea­ger 1 per­cent of the pop­u­la­tion to about 39 per­cent.

I thought this is again ample sci­en­tif­ic evi­dence of evo­lu­tion at work, as against cre­ation­ism. But where faith rules over rea­son, it will always rule over it (see point #3).

Final­ly, end­ing the post on a pos­i­tive note, did you know that more than 5000 let­ters writ­ten by Charles Dar­win, includ­ing ideas exchanged with many influ­en­tial fig­ures of his time, are ful­ly search­able and read­able online at the Dar­win Cor­re­spon­dence Project?

Pho­to Cred­it: UC Berke­ley

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  • Final­ly, end­ing the post on a pos­i­tive note, did you know that more than 5000 let­ters writ­ten by Charles Dar­win, includ­ing ideas exchanged with many influ­en­tial fig­ures of his time, are ful­ly search­able and read­able online at the Dar­win Cor­re­spon­dence Project?”
    Mahen­dra,
    As long as an Unqui­et Mind is read­able and search­able online, who the eff cares??
    😉

  • I am sure the cre­ation­ists will now argue that since sci­en­tists claim that evo­lu­tion takes a long peri­od of time (mil­lions of years), the 10 year old evo­lu­tion cycle is actu­al­ly proof that god inter­vened 🙂

  • Ramana: come on — to repeat your phrase, be Objec­tive! 🙂

    Ashok: yes, that is one of their claims, though it seems laugh­able. As expect­ed, not all the cre­ation­ists argu­ments for this news is con­sis­tent. Some are claim­ing this is sim­ply adaptation/mutation, and does not involve any new genet­ic infor­ma­tion. Some are terming this as “micro-evo­lu­tion”, which doesn’t require God’s inter­ven­tion. And so on. It’s quite a Flood (with an upper­case ‘F’ in ref­er­ence to Noah) of argu­ments. 🙂