Episode 136 - Seahorses

The Common Descent Podcast

Common Descent

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

4.8 • 764 Ratings

🗓️ 3 April 2022

⏱️ 136 minutes

🔗️ Recording | iTunes | RSS

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Summary

Seahorses are very strange fish, with their upright posture, tube-like mouths, and various other unusual features. Along with their cousins in the family Syngnathidae, seahorses have been the subject of much research into how they came about their bizarre body plans and lifestyles. In this episode, we discuss a bit of what we know of how seahorses (and their relatives) do what they do, and how they came to do it. In the news: trilobite predators, early jaws, de-extinction troubles, and spinosaur bone density. Time markers:Intro & Announcements: 00:00:00News: 00:04:00Main discussion, Part 1: 00:39:00Main discussion, Part 2: 01:26:30Patron question: 02:08:00 Check out our blog for bonus info and pictures:http://commondescentpodcast.wordpress.com/ Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp Find merch at the Common Descent Store! http://zazzle.com/common_descent Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev Follow and Support us on: Twitter: https://twitter.com/CommonDescentPCFacebook: https://www.facebook.com/commondescentpodcastInstagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduwPodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2 You can email us at commondescentpodcast(at)gmail.comOr send us physical mail at:The Common Descent Podcast1735 W State of Franklin Rd. Ste 5 #165Johnson City, TN 37604 The Intro and Outro music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org. Musical 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.
0:18.6	Hello, David.
0:19.7	Hello, Will.
0:20.6	And hello, listeners. Hello, Will.
0:21.9	And hello, listeners.
0:25.8	Welcome to episode 136 of the Common Descent Podcast.
0:28.6	Today we are discussing seahorses.
0:30.2	Ah, back to the ocean.
0:31.1	Yes.
0:34.3	It's been too long since we've talked about fish.
0:35.1	That's true.
0:39.1	I think celacanx was probably the last episode, and that was like two years ago.
0:41.8	And, you know, I thought the last fish we talked about was pretty weird.
0:43.5	So, let's go weird.
0:50.0	This episode, we will look at the group of fish that includes sea horses and their relatives.
0:51.8	The Cygnathids.
0:57.9	These are a bunch of very strange, odd, weirdly shaped, and behaviored fish.
1:02.2	We're going to talk about what makes a seahorse a seahorse, what makes them and their cousins unique from other fish. What do we know about their origins, of course, and then fossil record?
1:08.3	And we'll look at the interesting studies done on the evolutionary trends,
1:14.3	how they have just done some strange, strange things and why we think they might have done it.
1:18.7	This is a fun topic. I'm always excited to talk about a group that just went, if you'll excuse
1:23.7	the pun, off the deep end and got bizarre.
	...

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