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March 24, 2021 8 mins

Evolution doesn’t have goals or dated deadlines, but simply responds to environmental change. Seen through continual changes in genotypic frequencies (1:09), the fossil record (2:01) and antibiotic resistance (4:26) - evolution isn’t about the destination, but the pathway of change.

The Question of the Day asks (7:45) N,N-diethyl-meta-toluamide is an insect repellent developed by the US Army in 1946. What is it commonly known as?

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