Pictures of some brains from the Texas State Mental Hospital. (Not for the squemish.) "I walked into a storage closet filled with approximately one-hundred human brains, none of them normal, taken from patients at the Texas State Mental Hospital. The brains sat in large jars of fluid, each labeled with a date of death or autopsy, a brief description in Latin, and a case number."
Wellcome Image Awards 2012 "Wellcome Images is the world's leading source of images of medicine and its history, from ancient civilisation and social history to contemporary healthcare, biomedical science and clinical medicine. More than 180 000 images ranging from manuscripts, rare books, archives and paintings to X-rays, clinical photography and scanning electron micrographs are available on the Wellcome Images website." (Previously & Previously) [cortex, is that you?]
Owls are rad. Sometimes they look kind of metallic and scary, sometimes wise, sometimes puzzled, and sometimes like skulls, (Index); sometimes they sound like dogs or pigs, sometimes they sound like a little train, sometimes they sound alarmed, (Index of MP3s); sometimes you come across an extensive gallery of Central and North American owls with pictures, ranges, video, and even a description of the '04-'05 Northern Owl Invasion; sometimes it's a dynamic range map of Owls of the Western Hemisphere; sometimes it's the OwlCam homepage with downloadable owl movies, sometimes it's a series of articles on all things owl; sometimes at BiologyBase it's a printable owl sighting lifelist, sometimes it's Ruru, the morepork, New Zealand's native owl at NZBirds. Or, w0t! w0t!, it's attracting barn owls and building nest boxes at World Owl Trust. Previous MeFi birding FPP.
Wayne's World (an unfortunate name for a great website) is "An On-line Textbook of Natural History." I went looking for information on Vanilla, which I knew is the only commercial food product of an orchid, but which I didn't know is hand-pollinated, and found information on so much more. There are several extensive courses available on basic biology and botany, a huge section on chemicals in plants and animals, and tons of fun stuff like "The Truth about Cauliflory" and "Bat-Pollinated Flowers Of The Calabash & Sausage Tree." The index is extensive and covers everything from "Absinthe: An Herb That May Have Poisoned Vincent van Gogh" to "Ziricote: Beautiful Caribbean Hardwood In The Borage Family."
BIOS-Biological Innovation for Open Society is an open source biotechnology initiative based in Australia. Along with its parent organization CAMBIA, it aims to foster a "protected commons" for scientific information and technology. Tools and techniques are shared, and can be improved and repackaged, just like in open source software.