New research suggests Charles Darwin may have been a human example of this own theory about plants: that inbreeding has negative effects on the health of offspring. Darwin married and had 10 children with his first cousin Emma Wedgwood. Only seven children survived past age 10 and three of the survivors may have been infertile. Host Guy Raz speaks with Tim Berra, professor of evolution at Ohio State University, about the "inbreeding coefficient" theory that Darwin proved through his work and his own life.
ncG1vNJzZmivp6x7r7zRZ6arn1%2Bpsq68y5qrnqtfqMGwvthoqq2noq57sbTPeKqtp6KulqWJkGttb2tna392