The Broad Institute will host a free, public, virtual event in its Science for All Seasons series, A Personal Journey to Understand and Overcome Prion Disease, on April 19, 12PM-1PM.  Sonia Vallabh and her husband, Eric Minikel, will describe how they have helped to redefine the nature of prion disease — a progressive, degenerative, and currently untreatable disorder — and built a community of scientists, patients, and families addressing this challenge. Register here.

The Newton Free Library will host another virtual session of its STEM series for ages 6-9:  Little Lab Coats: The Human Body! on April 19 at 6PM. This one-hour program will talk about respiration, digestion, and other complex systems that use important organs such as the brain, heart, and lungs. Registration is required, and there are only a few seats left available. A Zoom link will be sent to registrants before the program.

“e” inc.’s annual fundraiser, the Wild & Scenic Film Festival, will be virtual this year, on April 30, 6:30PM-9PM. It’s designed to raise awareness of environmental issues globally and to inspire activism in the greater Boston area. You can purchase all-access passes now for $25 to view any of nine films:  Vet in the Wild, Shaba, Finding Salmon, It’s Bean Too Hot, Hidden Wild, El Mago Georges, Cormie the Pick Pocket, Community Not on Our Soil, An Alaskan Fight, A Flyfishing Refugee, A Fire for All, and The Bat Woman and Bat Man of India.

On March 14, 7PM-8PM, the Whitehead Institute will host a free, virtual event, open to all:  The Codebreaker — A Conversation with Jennifer Doudna, who is a Nobel Laureate, a U.C. Berkeley professor, and co-developer of the CRISPR-Cas9 genome-engineering technology. Register here.

Harvard Museums of Science and Culture will host another free, online session of Animal Encounters called Super Skeletons on April 9, 4PM-4:45PM. Register here at least 30 minutes prior to the event.