What ever happened to the 'struggle for life'?

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CORRECTIONS:

1:23 So it turns out that Darwin didn't actually take much interest in the Galápagos finches at first, so much so that he took little care in labelling where each of his specimens had come from. Moreover, it was John Gould who pointed out the similarities between the birds first who pointed this out to Darwin. Many years later Peter Lowe coined the term "Darwin's finches" essentially popularising this anachronistic concept. See this link for more details https://geneticsunzipped.com/transcri... (thanks to Alex Palazzo for hunting down that source!)

8:04 As Alex also pointed out to me, the appearance of mutations here could be misinterpreted quite easily to be "coming from" the environmental stimulus. I did not intend for this. What I really meant was that random mutations occur (or have already occurred) and are simply more likely to be selected under the new environmental stimulus. As I mentioned in the video, this selection would be unlikely to occur without the stimulus, so it is still of paramount importance, but it is certainly not causing the appearance of a new mutation. See this paper (also mentioned on the sources page at this part of the script) for more details: https://doi.org/10.1007/s1255101804...



Thank you to Gautam Shine for supporting this video!

#evolution #charlesdarwin #biology