Science on the Rocks: Darwin, Wallace, and the Making of The Descent of Man
📅 Wednesday, August 12, 2026 | 4:00 PM
📍 Weyman, Highlands Biological Station
Free and open to the public

Join Highlands Biological Station as we close out the 2026 Science on the Rocks series with a special conversation featuring Dr. Jim Costa and his new book.

In this engaging final talk of the season, Dr. Costa will explore the scientific, historical, and personal forces that helped shape Charles Darwin’s The Descent of Man. The talk will trace the intellectual world of Darwin and Alfred Russel Wallace, examining how their ideas on evolution, natural selection, and humanity developed, overlapped, and diverged.

Drawing from his new book, Dr. Costa will share insights into the history of evolutionary thought, the correspondence and debates that shaped the era, and the “mountain of facts” Darwin worked to organize into one of his most significant works.

Come curious, bring your questions, and settle in for an informal evening of science, history, and conversation at HBS. Attendees are encouraged to bring a beverage of choice.

Presenter: Dr. Jim Costa
Topic: Darwin, Wallace, and the making of The Descent of Man
Location: Weyman, Highlands Biological Station