• Dinosaur Plague
  NOVA science NOW segment about a couple who study amber and found insects in amber with blood (like Jurassic Park). Blood carried preserved pathogens like malaria, leschmaiasis. They theorize that by time of asteroid impact 65 mya dinosaurs may have been on their last legs...or gone.
  in Public bookmarks with amber animal dinosaur extinction nova process reptile science theory video
• How Much Is Left? The Limits of Earth's Resources, Made Interactive
  Scientific American feature (interactive) about the planet's natural resources and how much of various things remain for our use.
  in Public bookmarks with conservation extinction minerals natural resources water
• Lesson Plan | Will It Happen Again? Examining Mass Extinctions on Earth
  Overview | What is a mass extinction, and why do some scientists think human beings may be responsible for the next one? What do we know about the past extinctions, including their likely causes? In this lesson, students learn about mass extinctions, map extinction events to a geologic timeline, and explore current ideas about whether human influences may lead to another major extinction event.
  in Public bookmarks with climate_change evolution extinction future lesson_plans nytimes

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