New Resources from HHMI

How the Dinosaurs Went Extinct   Cataclysmic events like massive volcanic eruptions and asteroids smashing into Earth are thought to have caused Earth's five extinctions — but could a manmade one be next? Follow the evidence for extinctions past and present in Mass Extinction: Life at the Brink, a new documentary film that will air on the Smithsonian Channel starting on November 30th. Then, check out related BioInteractive resources, including the popular short film The Day the Mesozoic Died, about the extinction that brought an end to the dinosaur era.

...Or Did They? This Thanksgiving, many of you will be thankful that only the non-avian dinosaurs went extinct. Learn about the dinosaur lineage that survived in our latest Image of the Week. We are also putting the finishing touches on a new film on bird evolution. See a sneak preview on the BioInteractive Facebook page.

Extinctions and Biodiversity See research in action with two new videos! Follow Kaitlin Maguire and Tony Barnosky in the field to see how they calculate extinction rates. Then, Liz Hadly takes us on a tour of Yellowstone National Park to track food webs and the impact of climate change on ecosystems.

What's in a Name? Help us come up with a name for our new brand of videos that feature scientists in the field or lab doing their work (like the Barnosky and Hadly videos above). Submit your candidate name on Facebook and if we pick yours we will send you our favorite BioInteractive swag.

G1, S, G2, M What does that spell? That's right, the cell cycle! We have a brand new Click & Learn on the phases of the cell cycle, the proteins that regulate progression from one phase to the next, and how mutations in those proteins can lead to cancer. The Click and Learn supports our Medicine in the Genomic Era lectures.