Aaron Griffing

@aaronhgriffing.bsky.social

biologist | postdoc | evo devo | morphology | genomes | geckos | loud music & hot sauce enthusiast | he/him https://aarongriffing.weebly.com/ #GeckoEvoDevo

New in @science.org ...since our first discoveries of early tetrapods, they have been thought of as "amphibians" characterized by aquatic larvae. But is this true? For the first time, we report exceptional fossils of stem tetrapod babies that upend this paradigm. 1/n www.science.org/doi/10.1126/...

Direct development of stem tetrapods across the fin-to-limb transition

Modern amphibians are characterized by an aquatic larval stage that ends abruptly with a period of widespread tissue remodeling (metamorphosis) upon transition to terrestrial adulthood. A transient la...

science.org

Very happy to announce that I will be continuing my #snake research as an Assistant Professor at Slippery Rock University in Pennsylvania Fall 2026! This is the start of the SERPNT Lab! 🐍 Thank you to the huge number of individuals that have made this possible!

Bild

The Pacific spiny lumpsucker, an inefficient swimmer but a highly efficient suction cup. The pelvic fins have evolved into a strong suction disk on the belly, giving it the ability to anchor itself to substrates. Plate-like structures called "tubercles" provide defense against predators.

A 3D model made from a micro-CT scan of a Pacific spiny lumpsucker, with the skeleton rendered in light brown/beige and the tubercles rendered in a gradient of colors, beginning with pink at the head, and changing from purple, to blue, to teal as you move towards the tail. Outline of the body is rendered in white and transparent. Shown in antero-lateral view (top), anterior view (bottom left), and left lateral view of the head (bottom right). Scale bar at the bottom right is 5 mm.A 3D model made from a micro-CT scan of a Pacific spiny lumpsucker, with the skeleton rendered in light brown/beige and the tubercles rendered in a gradient of colors, beginning with pink at the head, and changing from purple, to blue, to teal as you move towards the tail. Outline of the body is rendered in white and transparent. Shown in dorsal view (top), right lateral view (middle), and ventral view (bottom). Scale bar at the bottom left is 10 mm.