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May 30, 2021

It might be more appropriate to call them the alligator-snapping turtle. Come learn about the largest snapping turtle on earth.


May 23, 2021

Poisonous birds are real. Come learn about one on this episode of Species.


If you would like to learn about human evolution, listen to Macken's new audio course here:

May 17, 2021

Come learn about the heads of hammerhead sharks and find out why a fish would hold their breath underwater. 


Here is the affiliate link for my new audio course, "Human Evolution," first episode is free:

May 16, 2021

I preview my new 10-lesson audio course, "Human Evolution," on Listenable.

Here's the link to listen, the introductory lesson is free:

(Full disclosure: This is my affiliate link, and if you use it, I get an additional 30% of...

May 10, 2021

If a big cat is going to eat Macken, he hopes it's a jaguar. Find out why, and learn all about this terrifying animal on this episode of Species.