Anthropologist Birute Galdikas on Rescuing Organutans

Traveler Eric Hansen. In 1982, Hansen set out alone across Borneo, an island in Indonesia composed almost entirely of rain forests and populated by natives who have had the least amount of of contact with westerners. Hansen's account of his travels is contained in the book Stranger in the Forest: A Foot Across Borneo. Hansen has also travelled to North Africa, Afghanistan, Nepal, India and Southeast Asia.

It's estimated that one in 10 women experience endometriosis during their reproductive years, a condition where cells that line the uterus go rogue by moving to other organs, taking root and spreading there, leading to terrible pain. Many women who have the disorder struggle to be properly diagnosed. Bioengineer LINDA GRIFFITH talks about her groundbreaking research into endometriosis.

The Pfizer and Moderna COVID-19 vaccines are the first vaccines to be activated by mRNA — and would not have been possible without the invention of the gene editing technology known as CRISPR. In his new book, The Code Breaker, author Walter Isaacson chronicles the development of CRISPR.