How Charles Darwin got sexual selection wrong | Letter

The theory needs to be updated by incorporating recent genetic breakthroughs and viewing the process through a female lens, says Heather Remoff

The question isn't whether or not we need a new theory of evolution (The long read, 28 June); it's why it has taken so long to bring the old one into the 21st century. Anchor bias, the difficulty of dislodging the first thing we learn about a topic, makes it challenging for biologists to accept and evaluate experimental data that doesn't play by Darwin's rules.

Natural selection had many fathers, including Darwin's own grandfather, Erasmus. But sexual selection is exclusively Darwin's, and is the theory most in need of a second look. The failure to update the theory of sexual selection by incorporating recent genetic breakthroughs and viewing the process through a female lens has left us with a seriously flawed theory of human evolution.