meta_pixel
Tapesearch Logo
Log in
Species

Mudpuppy

Species

Macken Murphy

Nature, Social Sciences, Science

4.8606 Ratings

🗓️ 7 October 2018

⏱️ 14 minutes

🧾️ Download transcript

Summary

Neither mud nor puppy, this strange salamander is just a big baby. Like you. Seriously, you look like an infant. Listen to find out why! Also, find out all about paedomorphism and neoteny. Enjoy learning about the fascinating life and life cycle of the common mudpuppy on this episode of species.

Bibliography: https://docs.google.com/document/d/1_eOJ7Kw9TncrmZc3DKI3Hd5HCXRbJLTLO_O8xAe2ZNg/edit?usp=sharing

See photos of the mudpuppy, a video of a mudpuppy eating a goldfish, and see a comparison photo between us and chimps, go to speciespodcast.com/animals/mudpuppy.

Transcript

Click on a timestamp to play from that location

0:00.0

You look like a baby. Without even looking at you, I can tell you right now that if you are listening

0:06.6

to this, you look like an infant. Don't feel bad about it. All humans do. See, part of our evolution

0:13.1

was the process of pedomorphism, or neoteny, the retention of childhood traits that your ancestors

0:20.2

would grow out of. Relative to other primates,

0:22.9

you have a super flat face, a super big forehead, and a long torso. Your head, in relation to your

0:28.8

body, is absurdly big for an adult mammal. You might even be able to tolerate lactose,

0:33.7

which is something the vast majority of animals lose the ability to do in adulthood.

0:39.0

We retained all these childlike traits. It's a marker for our species, homosapians. Chimps are

0:46.6

our closest relatives. But facially, we look nothing like them, right? Okay, now look at a baby

0:52.0

chimp. That looks pretty familiar now, doesn't it? In fact, if you

0:56.7

look at the skull of a baby chimp, the skull of a baby human, one of an adult chimp, and one of an

1:01.7

adult human, all the skulls will look pretty similar, except the adult chimp. The adult chimp

1:07.9

will be the odd one out, at least at a glance. I'll post pictures on the website so you can see what I'm talking about.

1:13.6

There are a lot of potential reasons why humans retained these traits.

1:17.6

It's actually a really interesting debate among biological anthropologists.

1:21.6

Some say that because we evolved to find these traits cute, which is a fact,

1:26.6

we are now attracted to adult mates who are a little cuter, a little more childlike in the face.

1:32.6

Other anthropologists agree that the traits are retained in order to be cute, but they say it's because it helped individuals receive sympathy and avoid punishment.

1:41.4

In other words, it's easier to extend a helping hands to the cute fella in trouble

1:46.2

than it is to the grisly-looking alpha, and so the cute guys and girls got a leg up from others.

1:52.4

Other people argue that it allowed us to make space for our huge brains, and we retained the

1:58.8

big-headed nature of all baby primates into adulthood to make such

...

Please login to see the full transcript.

Disclaimer: The podcast and artwork embedded on this page are from Macken Murphy, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Macken Murphy and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.

Copyright © Tapesearch 2026.