Tags » Tetrapods

Nature, red in tooth and claw

“You’re trying to live without enemies. That’s all you think about, not having enemies.” Isaac Babel, Red Cavalry

“Enemies are the most important agencies of selection.” Geerat Vermeij, … 164 more words

When fish began to walk

In this interactive module, explore the anatomical changes in four-limbed animals (tetrapods) as they evolved from fish.


For more resources from BioInteractive and the Howard Hughes Medical Institute, please visit their website at: … 45 more words


Give us a Hand, Gar: More Insights into the Evolution of Tetrapod Limbs

About 360 million years ago some fish-like creatures crawled out of the water and explored a vast new world. The transition from water to land is well documented in the fossil record with some amazing specimens, such as  342 more words


Why don't mammals have more than 4 limbs?

-a cheetah in action captured by Mark Dumont

Approximately one month ago I wondered why there were no mammals that had more than 4 limbs. I wondered whether they were somehow optimal for the challenges faced by mammals. 1,089 more words


Who came first?

One of the things that interest me most in education today, and specifically about education in evolutionary biology, is trying to diminish or even to abolish the adverse effects of this terrible and nefarious conception called s… 799 more words

Evolutionary Biology

Game of Tetrapods

We have a group report tomorrow and I had this idea of having a Game of Thrones format because the topic is Tetrapods (meaning four limbed creatures) and man do these guys have a long line of lineage. 127 more words

#Comparative Anatomy