A beautiful tour of the bizarre system that keeps chicks from suffocating before they hatch.

This is another installment of the NPR Skunk Bear series. If no film or link appears in this email, go to the blog to view it by clicking on the blog title above. If the film stops & starts in an annoying manner, press pause (lower left double bars ||) to let it buffer and get ahead of you. Thanks to Liz Galton for this.   [Chuck Almdale]