Fish Teeth Show How Ease of Innovation Enables Rapid Evolution

It’s not what you do, it’s how readily you do it. Rapid evolutionary change might have more to do with how easily a key innovation can be gained or lost rather than with the innovation itself, according to new work by biologists at the University of California, Davis, who studied how teeth in certain fishes evolved in response to food sources and habitats.

Their work was published Feb. 26 in Nature.

Mussel Bed Surveyed Before World War II Still Thriving

A mussel bed along Northern California’s Dillon Beach is as healthy and biodiverse as it was about 80 years ago, when two young students surveyed it shortly before Pearl Harbor was attacked and one was sent to fight in World War II.

Genetics of Alternating Sexes in Walnuts

The genetics behind the alternating sexes of walnut trees has been revealed by biologists at the University of California, Davis. The research, published Jan. 3 in Science, reveals a mechanism that has been stable in walnuts and their ancestors going back 40 million years — and which has some parallels to sex determination in humans and other animals.

Resources for Teaching Ecology and Evolution

In this post, I will point to several teaching resources specific to ecology and evolution. However, principles from teaching in STEM more generally also apply. Therefore, I provide general teaching resources. Most of these resources are focused on teaching at the high school or undergraduate level. Lastly, I provide teaching resources that are specific to UC Davis. This page will be updated periodically.