Pharyngula

PZ Myers

Autophagy wins a Nobel

Well, actually, Yoshinori Ohsumi has won the prize for his work on autophagy, a cellular process you may have never heard of before. The word means “self eating”, and it’s an important pathway that takes chunks of the internal content of the cell and throws them into the cell’s incinerator, the lysosome, where enzymes and…

Friday Cephalopod: Net traps and chiller

If you ever wondered how to breed nautiluses…

Friday Cephalopod: It’s a trap!

Don’t let the pokeboys and pokegirls enslave you!

…snake, that is.

Friday Cephalopod: Epic Battle!

It’s called a Black-Waved Flannel, but none of us are fooled. We know where that came from. It’s probably finished consuming its brain meal and is looking for a new host.

The oldest evidence for microbial life has been found in Greenland, with fossilized 3.7 billion year old stromatolites (layered bacterial colonies) found in the rocks. Here’s what they look like: And here’s the abstract of the paper: Biological activity is a major factor in Earth’s chemical cycles, including facilitating CO2 sequestration and providing climate feedbacks.…

Evolution caught in a movie

It’s a standing joke that creationists demand a complete time-lapse recording of evolution before they’re going to believe it. Joke no more: we’ve got one. It’s a movie of bacteria evolving antibiotic resistance. I don’t even need to explain it, because the video explains everything that’s going on. Different old joke now: But they’re still…

Friday Cephalopod: Kaiju

Fins made of straw, easily knocked down

In response to Neil Shubin’s recent paper on the subject, and Carl Zimmer’s summary, the creationist Michael Denton criticizes evolutionary explanations for the vertebrate limb. It’s a bizarre argument. First, here’s the even shorter summary of the Shubin work. Ray-finned fish have, obviously enough, rays in their fins — rigid bony struts that provide structure.…