Podbean logo
  • Discover
  • Podcast Features
    • Podcast Hosting

      Start your podcast with all the features you need.
    • Podbean AI Podbean AI

      AI-Enhanced Audio Quality and Content Generation.
    • Blog to Podcast

      Repurpose your blog into an engaging podcast.
    • Video to Podcast

      Convert YouTube playlists to podcasts, videos to audios.
  • Monetization
    • Ads Marketplace

      Join Ads Marketplace to earn through podcast sponsorships.
    • PodAds

      Manage your ads with dynamic ad insertion capability.
    • Apple Podcasts Subscriptions Integration

      Monetize with Apple Podcasts Subscriptions via Podbean.
    • Live Streaming

      Earn rewards and recurring income from Fan Club membership.
  • Podbean App
    • Podcast Studio

      Easy-to-use audio recorder app.
    • Podcast App

      The best podcast player & podcast app.
  • Help and Support
    • Help Center

      Get the answers and support you need.
    • Podbean Academy

      Resources and guides to launch, grow, and monetize podcast.
    • Podbean Blog

      Stay updated with the latest podcasting tips and trends.
    • What’s New

      Check out our newest and recently released features!
    • Podcasting Smarter

      Podcast interviews, best practices, and helpful tips.
  • Popular Topics
    • How to Start a Podcast

      The step-by-step guide to start your own podcast.
    • How to Start a Live Podcast

      Create the best live podcast and engage your audience.
    • How to Monetize a Podcast

      Tips on making the decision to monetize your podcast.
    • How to Promote Your Podcast

      The best ways to get more eyes and ears on your podcast.

    • Podcast Advertising 101

      Everything you need to know about podcast advertising.
    • Mobile Podcast Recording Guide

      The ultimate guide to recording a podcast on your phone.
    • How to Use Group Recording

      Steps to set up and use group recording in the Podbean app.
  • All Arts Business Comedy Education
  • Fiction Government Health & Fitness History Kids & Family
  • Leisure Music News Religion & Spirituality Science
  • Society & Culture Sports Technology True Crime TV & Film
  • Live
  • How to Start a Podcast
  • How to Start a Live Podcast
  • How to Monetize a podcast
  • How to Promote Your Podcast
  • How to Use Group Recording
  • Log in
  • Start your podcast for free
  • Podcasting
    • Podcast Features
      • Podcast Hosting

        Start your podcast with all the features you need.
      • Podbean AI Podbean AI

        AI-Enhanced Audio Quality and Content Generation.
      • Blog to Podcast

        Repurpose your blog into an engaging podcast.
      • Video to Podcast

        Convert YouTube playlists to podcasts, videos to audios.
    • Monetization
      • Ads Marketplace

        Join Ads Marketplace to earn through podcast sponsorships.
      • PodAds

        Manage your ads with dynamic ad insertion capability.
      • Apple Podcasts Subscriptions Integration

        Monetize with Apple Podcasts Subscriptions via Podbean.
      • Live Streaming

        Earn rewards and recurring income from Fan Club membership.
    • Podbean App
      • Podcast Studio

        Easy-to-use audio recorder app.
      • Podcast App

        The best podcast player & podcast app.
  • Advertisers
  • Enterprise
  • Pricing
  • Resources
    • Help and Support
      • Help Center

        Get the answers and support you need.
      • Podbean Academy

        Resources and guides to launch, grow, and monetize podcast.
      • Podbean Blog

        Stay updated with the latest podcasting tips and trends.
      • What’s New

        Check out our newest and recently released features!
      • Podcasting Smarter

        Podcast interviews, best practices, and helpful tips.
    • Popular Topics
      • How to Start a Podcast

        The step-by-step guide to start your own podcast.
      • How to Start a Live Podcast

        Create the best live podcast and engage your audience.
      • How to Monetize a Podcast

        Tips on making the decision to monetize your podcast.
      • How to Promote Your Podcast

        The best ways to get more eyes and ears on your podcast.

      • Podcast Advertising 101

        Everything you need to know about podcast advertising.
      • Mobile Podcast Recording Guide

        The ultimate guide to recording a podcast on your phone.
      • How to Use Group Recording

        Steps to set up and use group recording in the Podbean app.
  • Discover
    • Log in
    Sign up free
GradCast

GradCast

Education

199 | The Land Before the Land Before Time

199 | The Land Before the Land Before Time

2019-01-29
Download

What did the landscape of Ontario look like over two billion years ago? The answer is hidden in the rocks. On this episode, geologist Carolyn Hill (PhD Candidate in the Department of Earth Sciences) tells hosts Yimin and Greg why the Pre-Cambrian may not be the nicest place for time travellers to visit. Plus, we learn about how oxygen once almost killed off life on Earth!

Hosts: Yimin Chen & Gregory Robinson

Produced by Chantal Lemire

view more

More Episodes

Chairs Chat 2
2025-05-01 14
503 | Owning your future: Transferring skills from academia to the job market
2025-04-29 21
Special Episode: 39th Annual Western Research Forum
2025-04-24 30
502 | You'd Better Be Done!
2025-04-22 16
#GlobalGrads Redux: Policy and Practice
2025-04-17 25
501 | #InspiringMinds: Fit or Fixated? Unpacking Emerging Fitness Ideals and the Role of Disordered Eating
2025-04-15 40
500 | Big Brain Energy
2025-04-08 33
499 | Third Time's a Charm: Exploring Representations of, and Attitudes Towards, Snakes
2025-04-01 30
#BookCast 8 | The Secret History by Donna Tart
2025-03-27 32
#GlobalGrads Redux New Horizons: From Nepal to Western: Deepmala Rana Bhat's Journey as an International Student and Advocate for SOGS
2025-03-25 38
498 | #InspiringMinds 4: Development of Parasports in Ghana
2025-03-18 38
497 | Am I Pronouncing This Correctly? Reading, Context, and Word Recognition
2025-03-11 33
496 | A Bone by Any Other Name: Refining the Science of Anthropological Investigations Using CT Scans
2025-03-04 36
495 | Algorithms, Hate Engagement, and the Digital Divide
2025-03-04 44
494 | Advancing Ultrasound Imaging: Speed, Accuracy, and Biomedical Innovation
2025-02-25 37
493 | #InspiringMinds 3: Easing the Load: Shoulder Injuries and Firefighters
2025-02-18 51
#GradLife | For the Love of Grad School
2025-02-11 64
#BookCast 7 | The Book of Two Ways
2025-02-06 43
492 | Mining and Modeling: Here and Abroad
2025-02-04 42
491 | Politics and Media Representation of Cow Violence
2025-01-28 36
  • ←
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • →
012345678910111213141516171819

Get this podcast on your
phone, FREE

Download Podbean app on App Store Download Podbean app on Google Play

Create your
podcast in
minutes

  • Full-featured podcast site
  • Unlimited storage and bandwidth
  • Comprehensive podcast stats
  • Distribute to Apple Podcasts, Spotify, and more
  • Make money with your podcast
Get started

It is Free

  • Podcast Services

    • Podcast Features
    • Pricing
    • Enterprise Solution
    • Private Podcast
    • The Podcast App
    • Live Stream
    • Audio Recorder
    • Remote Recording
    • Podbean AI
  •  
    • Create a Podcast
    • Video Podcast
    • Start Podcasting
    • Start Radio Talk Show
    • Education Podcast
    • Church Podcast
    • Nonprofit Podcast
    • Get Sermons Online
    • Free Audiobooks

  • MONETIZATION & MORE

    • Podcast Advertising
    • Dynamic Ads Insertion
    • Apple Podcasts Subscriptions
    • Switch to Podbean
    • YouTube to Podcast
    • Blog to Podcast
    • Submit Your Podcast
    • Podbean Plugins
    • Developers

  • KNOWLEDGE BASE

    • How to Start a Podcast
    • How to Start a Live Podcast
    • How to Monetize a Podcast
    • How to Promote Your Podcast
    • Mobile Podcast Recording Guide
    • How to Use Group Recording
    • Podcast Advertising 101

  • Support

    • Support Center
    • What’s New
    • Free Webinars
    • Podcast Events
    • Podbean Academy
    • Podbean Amplified Podcast
    • Badges
    • Resources

  • Podbean

    • About Us
    • Podbean Blog
    • Careers
    • Press and Media
    • Green Initiative
    • Affiliate Program
    • Contact Us
  • Privacy Policy
  • Cookie Policy
  • Terms of Use
  • Consent Preferences
  • Copyright © 2015-2025 Podbean.com