Okay, but what about birds that can't fly?

Okay, but what about birds that can't fly?

E24. Flight is the thing we associate most with birds, so what does it mean when a lineage gives it up? Dr. Scott Edwards, Harvard, joins Scott to unpack how flightlessness evolves, why it keeps happening across the bird family tree, and what the genome reveals about how a bird loses the ability to fly. In this episode you'll hear about: How losing flight reshapes a bird's body, from feathers to forelimbs to that one famously enormous egg Why the answer wasn't where geneticists expected to find it What an extinct giant and a tiny tropical relative can tell us about where moa actually came from All audio, video, and images in this episode are either original to Okay, But... Birds (© Okay Media, LLC) or used under license/permission from the respective rights holders. Bird media from the Macaulay Library is used courtesy of the Cornell Lab of Ornithology as follows: Falkland Steamer-Duck audio contributed by Maurice A. E. Rumboll, ML4114 Great Tinamou audio contributed by David L. Ross, Jr., ML57320

Tämä jakso on lisätty Podme-palveluun avoimen RSS-syötteen kautta eikä se ole Podmen omaa tuotantoa. Siksi jakso saattaa sisältää mainontaa.

Jaksot(45)

Okay, but what's threatening the apex predators of the sky?

Okay, but what's threatening the apex predators of the sky?

E44. An adult eagle has no natural predators, so why are birds of prey declining? Dr. Todd Katzner, a wildlife biologist with the U.S. Geological Survey, explains the surprising dangers facing golden ...

15 Loka 33min

Okay, but how terrifying were terror birds?

Okay, but how terrifying were terror birds?

E43. For millions of years, South America’s top predators weren’t cats or bears. They were birds, some taller than a person. Paleontologist Dr. Federico "Dino" Degrange of the Universidad Nacional de ...

8 Loka 26min

Okay, but what happens when a bird gets sick?

Okay, but what happens when a bird gets sick?

E42. Birds get sick too, and a lot of what happens next looks surprisingly familiar. Dr. Andrea Townsend of Hamilton College has spent two decades following American crows through outbreaks, and she w...

1 Loka 33min

Okay, but griffins, and ligers, and birds, oh my!

Okay, but griffins, and ligers, and birds, oh my!

E41. Centaurs, mermaids, minotaurs: we have been inventing creatures that are two things at once for as long as we have told stories. Birds do it for real. Dr. Glaucia Del-Rio of the Florida Museum of...

24 Syys 32min

Okay, but... cranes!

Okay, but... cranes!

E40. There are only 15 crane species on the planet, and 11 of them are in trouble. Dr. Andy Caven, Director of Central Flyway Programs for the International Crane Foundation, has spent his career on t...

17 Syys 32min

Okay, but why does that bird look so rough?

Okay, but why does that bird look so rough?

E39. Every August the questions start: there is a cardinal at the feeder with no head feathers, and it looks terrible. Nothing is wrong with it. It is molting, which every bird does at least every yea...

10 Syys 31min

Okay, but what's up with feathers?

Okay, but what's up with feathers?

E38. You have pulled one out of a jacket sleeve at a bad angle, picked one up on a walk, and you are almost certainly within arm's reach of a few thousand of them right now. Dr. Cody Limber, who recen...

3 Syys 32min

Okay, but does age bring Wisdom?

Okay, but does age bring Wisdom?

E37. A bird called Wisdom was banded on Midway Atoll in 1956 and is still laying eggs today, which makes her at least 75 and the oldest known wild bird on the planet. She has also outlived the man who...

27 Elo 30min

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