logo
episode-header-image
Apr 2024
40m 40s

The mystery of the missing extinctions

NHPR
About this episode

When it comes to protecting the biodiversity of Planet Earth, there is no greater failure than extinction. Thankfully, only a few dozen species have been officially declared extinct by the US Fish and Wildlife Service in the half-century since the passage of the Endangered Species Act. 

But, hold on. Aren’t we in the middle of the sixth mass extinction? Shouldn’t the list of extinct species be… way longer? Well, yeah. Maybe.

Producer Taylor Quimby sets out to understand why it’s so difficult to officially declare an animal extinct. Along the way, he compares rare animals to missing socks, finds a way to invoke Lizzo during an investigation of an endangered species of crabgrass, and learns about the disturbing concept of “dark extinctions.” 

Editor's Note: This episode was first published in October 2022. Since then, the US Fish and Wildlife Service officially delisted 21 of 23 proposed species due to extinction. The ivory-billed woodpecker was not one of them. 

Featuring Sharon Marino, Arne Mooers, Sean O’Brien, Bill Nichols, and Wes Knapp.

Up next
Yesterday
The Brick Lady of St. Louis
Ever since a tornado tore through one of St. Louis, Missouri’s poorest neighborhoods, there are piles of bricks all over the place. It’s not just a debris problem. Bricks in St. Louis have a long and complicated history here – the darling of many historic preservationists and a g ... Show More
30m 24s
Oct 1
O/I Trivia: Natural Selection
What do pastries have to do with environmental justice? Cat butts with the climate crisis? And what US president ate a half-chewed piece of salmon leftover from a bear on reality TV?Grab a pencil (and maybe a pint?) and get ready for the inaugural Outside/In trivia episode we’re ... Show More
31m 52s
Sep 24
How to solve the climate crisis in 60-90 minutes
When designer Matt Leacock decided to make a board game about climate action, he knew he wanted to make it – first and foremost – fun to play. “If we sold anything as an educational game… people would run screaming and running for the hills,” he told us. But can simulating the cl ... Show More
28m 23s
Recommended Episodes
Oct 2024
Que faut-il faire pour éviter une sixième extinction ?
Des changements climatiques notables, des phénomènes volcaniques ou encore les conséquences liées à des impacts de météorites, ont déjà provoqué des extinctions massives sur Terre, la plus importante ayant entraîné la disparition d'environ 70 % des espèces terrestres. La 5e extin ... Show More
2m 10s
Jan 2021
David Sepkoski, "Catastrophic Thinking: Extinction and the Value of Diversity from Darwin to the Anthropocene" (U Chicago Press, 2020)
We live in an age in which we are repeatedly reminded—by scientists, by the media, by popular culture—of the looming threat of mass extinction. We’re told that human activity is currently producing a sixth mass extinction, perhaps of even greater magnitude than the five previous ... Show More
47m 48s
Oct 4
Gerta Keller, "The Last Extinction: The Real Science Behind the Death of the Dinosaurs" (Diversion Books, 2025)
The story behind Dr. Gerta Keller’s world-shattering scientific discovery that dinosaur extinction was NOT caused by asteroid impact, but rather by volcanic eruptions on the Indian peninsula, a discovery that highlights today’s existential threat of greenhouse gasses and climate ... Show More
59m 52s
Dec 2024
The New Conservationists: Thanks to Conservation Efforts, Pandas, Wolves and Panthers Are Making a Comeback (Part 4)
Tens of thousands of animal species are facing extinction, mostly because of human activity. But thanks to conservationists, there are some animals that are making a comeback.This is part four of “The New Conservationists,” a four-part series about the evolving world of animal co ... Show More
23m 25s
Aug 2023
Hawai’i Wildfires, Blue-Fin Tuna Science, Maine’s New Lithium Deposit. August 11, 2023, Part 1
We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   Devastating Fires Might Become More Common In Hawaii As of Friday mor ... Show More
45m 11s
Oct 4
Gerta Keller, "The Last Extinction: The Real Science Behind the Death of the Dinosaurs" (Diversion Books, 2025)
The story behind Dr. Gerta Keller’s world-shattering scientific discovery that dinosaur extinction was NOT caused by asteroid impact, but rather by volcanic eruptions on the Indian peninsula, a discovery that highlights today’s existential threat of greenhouse gasses and climate ... Show More
59m 52s
May 2024
Endangered Species Day – Celebrate Conservation Successes
Endangered Species Day is May 17, and in this episode, hosts Rick and Marco talk about species that need our help. From the ālula plant to the axolotl salamander, many species around the world have seen their numbers drastically decline. There is good news, though, because there ... Show More
23m 19s
Aug 2023
Old Things Considered: La Brea, Megalodon, Dino Footprints, Surviving History. Aug 25, 2023, Part 2
How Early Humans May Have Transformed L.A.’s Landscape ForeverJoin us on a time traveling adventure, as we go back 15,000 years to visit what’s now southern California. During the last Ice Age, saber-toothed cats, wooly mammoths, and dire wolves prowled the landscape, until … the ... Show More
47m 16s
Sep 18
The Permian Extinction: When Life Nearly Died
It was the biggest mass extinction event in Earth’s history. 250 million years ago, a 252 million years ago, Earth faced its deadliest crisis. 97% of all life was wiped out in the Permian Extinction – a cataclysm so severe it’s known as The Great Dying.In this episode of The Anci ... Show More
58m 20s
Jul 2024
Combien d'exticntion de masse la Terre a-t-elle subi ?
La plupart des espèces apparues sur la Terre ont une durée de vie limitée, certaines résistant plus longtemps que d'autres. De fait, plus de 99 % des organismes vivants ayant vécu sur notre planète ont cessé d'exister. Mais certaines disparitions sont plus brutales et concernent ... Show More
2m 1s