The podcast episodes provided explore various aspects of mass extinction events, including how certain species were able to survive these catastrophic events while others perished.

For example, the episode "Why were animals bigger in the past?" examines how factors like body size and dietary specialization impacted species' chances of survival during mass extinctions.

The episode "Did trees kill the world?" delves into the theory that the proliferation of early forests during the Devonian period triggered one of the biggest mass extinction events in Earth's history by drastically altering the planet's atmosphere and oceans.

And the episode "How did ferns survive the dinosaur extinction?" explores how ancient fern species managed to survive the mass extinction event that wiped out the dinosaurs, shedding light on the resilience of certain plant species.