The evolution of complexity

posted by Casey Dunn / on February 27th, 2014 / in Evolution

 

complexity

An increase in average complexity across life through time is not evidence that evolution is biased towards increased complexity. I illustrate this point with a simulation, following up on discussions with Amy Maxmen about her piece on the evolution of complexity in Nautilus.

CreatureCast – Two Urchins

posted by Casey Dunn / on February 27th, 2014 / in Echinoderms

The green urchin and the pencil urchin are alike in many ways, but their differences matter in a big way when it comes to their ecological impacts. We originally posted this episode at the New York Times, where you can read more.

Made by Sofia Castello y Tickell, a research assistant, and Robert Lamb, a graduate student. Both are in Jon Witman’s laboratory.The music is by Jahzzar.

CreatureCast – Kleptocnidae

posted by Casey Dunn / on February 14th, 2014 / in Cnidaria, molluscs

Glaucus harvests the defenses of its prey and uses them against its own predators. We originally posted this episode at the New York Times, where you can read more.

Produced by Lauren Cheung. The Glaucus illustration is based on the beautiful photo by Taro Taylor. The music is “Thinking of you” by Gillicuddy.