...is a weblog about the liberal arts 2.0 edited by Jason Kottke since March 1998 (archives). You can read about me and kottke.org here. If you've got questions, concerns, or interesting links, send them along.
A snail that lives near the hydrothermal vents in the Indian Ocean has developed an unusual defense mechanism: it uses the iron sulfide in the surrounding water to make an iron-plated shell with some interesting properties.
Part of its ability to resist damage seems to be the way the shell deforms when it's struck: It produces cracks that dissipate the force of the blow, and nanoparticles that injure whatever is attacking it
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