anatomicult

homeotic selector genes (Hox genes) - determine body parts like wings, legs, antennae - controlled by upper layers (gap, pair rule, segment polarity) (part of a larger group of genes - homeobox genes)

Heart embryology: a clay tutorial

> Why no new phyla have emerged in the time since the Cambrian explosion is one of biology’s great mysteries. Five major extinction events have occurred since the explosion, offering vacated niches for new body plans to evolve. Still, no new phyla have been observed. For evolutionary developmental biologists, two main questions emerge from this phenomenon: (1) what developmental processes underlie this apparent phylum-level stasis and (2) what developmental processes underlie the evolution of novel features at the class, family, and species levels. The answers to these questions are generally sought under the concepts of constraint and evolvability respectively.

and it has a subreddit and discord, too

by Søren Toxvaerd

--George Louis Leclerc, Comte de Buffon

Davis, Simon & Payne, S.. (1992). 101 ways to deal with a dead hedgehog: notes on the preparation of disarticulated skeletons for zoo-archaeological use. Circaea. 8. 95-104.

I have been buying bags of human bones for over 22 years now and have always enjoyed that first moment when I rip open the bag and inhale the somber, musky smell of decay and sadness. Unfortunately for me and my neighbors: not so this time. The smell that erupted from the bag was unholy and not unlike curdled dairy or aged cheese... also: when the sun rises, these bones float over my bed as I lay in fear, trembling, and they speak to me by rapidly vibrating the molecules of my own skin. Other than these two issues, I have enjoyed the BONES1 bag of bones very much.

and so the corpse keeps on living. Have you heard about clandestine graves, by the way?

I'm pretty sure I first saw this video on tumblr, but can't find the original post anymore.