Episode 68 - Evolution of Eyes

The Common Descent Podcast

Common Descent

Science, Natural Sciences, Education, Earth Sciences, Science:natural Sciences

4.8 • 764 Ratings

🗓️ 25 August 2019

⏱️ 98 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

If you’re reading this, there’s a very good chance you’re using one of the most incredible tools in the animal toolkit: the eye! In this episode, we discuss what’s known – and what’s suspected – about the incredible evolutionary history of the eye. How many types of eyes are there? What is an eye, anyway? Just how difficult is it to evolve something so intricate and complex? All this and more! In the news: a giant parrot, a giant penguin, ancient RNA, and crinoid rafts. Time markers: Intro & Announcements: 00:00:00News: 00:05:00Main discussion, Part 1: 00:32:00Main discussion, Part 2: 01:09:00 Check out our blog for bonus info and pictures:http://commondescentpodcast.wordpress.com/ We're going to be at DragonCon 2019! The Common Descent Store is open! Get merch! http://zazzle.com/common_descent Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPCFacebook: https://www.facebook.com/commondescentpodcast/PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw The Intro and Outro music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org. Muscial Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0http://creativecommons.org/licenses/by/3.0/

Transcript

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0:00.0	You're listening to the Common Descent Podcast.
0:19.0	Hello, David. Hello, Will. And hello, listeners. Welcome to episode 68 of the Common to Simp podcast. Welcome. Welcome. This is a really cool topic. We are talking today about the evolution of eyes.
0:34.6	Ooh. It should be fun. It's got a lot.
0:38.2	This is one of the topics of all the ones that we've done so far that I ended up having to
0:43.9	study the most for because there's so much.
0:46.9	Yeah, big topic.
0:47.9	It's a huge topic.
0:48.9	We're not going to cover everything, but there's a lot of cool stuff.
0:51.6	We're going to look at some of the varieties of eyes, how an eye works, and how the different
0:56.5	eyes worked, and then what we know about the evolution of various eyes and eyes in general,
1:03.5	because there's some aspects that we actually don't know a lot about.
1:06.1	So we're going to get into that.
1:07.9	Now, this episode was requested by a number of people. It was a very popular topic.
1:12.8	One was our patron Nils, as well as Lita, Brian, and Jonathan.
1:17.5	Well, thanks, everybody.
1:18.8	Thanks for the awesome topic.
1:20.2	Yeah. Hopefully we live up to it. We'll see.
1:22.6	We'll see.
1:23.9	So, before we get on to the episode, we have some announcements.
1:29.2	Yes, we do.
1:29.7	So just brief announcements.
1:31.1	First and foremost, we have a Patreon.
	...

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