The New Scientist started a new essay this week

In 1856, geologist Charles Lyell wrote to Charles Darwin with a question about fossils. Puzzled by types of mollusc that abruptly disappeared from the British fossil record, apparently in response to a glaciation, only to reappear 2 million years later completely unchanged, he asked of Darwin: “Be so good as to explain all this in your next letter.” Darwin never did.

While preparing my new lectures on evolutionary medicine, Continue reading Be so good as to explain all this in your next letter →