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Taking from nature 5 September 2012
Using the proteins of Photosystem I from chloroplasts has become another way to make solar cells for electricity production. Scientists at Vanderbilt University have published their results showing... more
My first Biology lesson 29 August 2012
At the start of the year I want my students to discover what a great subject Biology is and there is no time to waste in an IB course with such a lot of content. I usually start the year with a microscope... more
Endosymbiosis: Biology research for IB classrooms 14 August 2012
In a recent article New Scientist magazine exposes a fascinating organism which is difficult to classify. What's more exciting to scientists is that it looks like a living example of endosymbiosis,... more
Scientific process 23 June 2012
Just over a year ago, I wrote a blog "Arsenic based life forms?" a study was published suggesting that a bacterium could be using arsenic instead of phosphorus in building its DNA and other molecules.... more
Convergent evolution- losing the eye 26 May 2012
A recent study from biologists at New York University about evolution of cave adaptations in cave fish suggests that the loss of eyes and pigmentation has occurred frequently and repeatedly as new populations... more
Ethics of conservation 17 March 2012
Is there any justification for allowing some species go extinct and not try to prevent their disappearance forever? A recent article in the New Scientist provides a glimpse at the arguments being proposed... more
Apocalypse Now? 4 February 2012
Several articles have been circulating about the dangers of the bird flu virus, H5N1, since it first appeared a few years ago. Influenza, or the flu, is not a new disease but with new variations the... more
Genetic resuscitation from extinction 11 January 2012
Charles Darwin made a number of observations on his round the world voyage from 1831 to 1835. One of his most famous accounts stem from the variety between the giant Galapagos tortoises found on different... more
Meat & Global warming? 9 December 2011
Recently, an article in The New Scientist "Just how much meat can eco-citizens eat?" by Sujata Gupta provides interesting reading for biology students. Sujata makes a statement about the waste of animal... more