If anyone has a paper anniversary coming up, such as a year of blogging or a year since a creationist promised to “get back to you” about their debunked claim, one of Joseph Wu’s origami octopods might be the perfect gift—to themselves.

Here’s an evocative view of Precambrian life.

The Wild Film History web site has a clip from the 1990s of a previously unknown pelagic jellyfish. The bell is up to a metre across and the tentacles trail about six metres.

It’s Cephalopod Appreciation Day!

Image from the U.S. Smithsonian National Museum of Natural History.

Blog Malaria, Bedbugs, Sea Lice, & Sunsets has a brief article about underwater photography: you need lights of some power to get wavelengths other than blue light.

There’s a much larger version of this image on the site.