black widow
awild | January 27, 2009Widow spider and harvester ants. Hallelujah Junction, California
This young black widow (Latrodectus hesperus) set up shop above the nest entrance of a colony of Pogonomyrmex harvester ants. It's an all-you-can-eat buffet, allowing the spider nearly unlimited pickings as the ants come and go.
The spider's mottled coloration is typical of young widows; they don't acquire the striking black and red warning garb until maturity.
photo details: Canon 100mm f2.8 macro lens on a Canon EOS D60
ISO 100, 1/200 sec, f/11, MT-24EX twin flash
zooillogix | June 19, 2007Tougher than steel and Kevlar, the silk of the black widow spider has long been coveted by manufacturing companies, defense contractors and comic-book reading nerds as a possible material of the future.
Scientists have spent years decoding pieces of the spiders' silk making genes, but now Nadia Ayoub and a group of researchers at the University of California-Riverside can create the full proteins and probably spider silk as well.
You want to manufacture my what!?
The silk making genes turn out to be quite long (over 10,000 base-pairs), but with very few introns or "junk DNA" sections that…