“…a package of female black widow spiders arrived at the San Diego State University chemistry department. The arachnids, jet black with a dash of red, cultivate a powerful venom that can be painful to humans. Except for that minor inconvenience, they make good subjects for studying spider silk” https://www.quantamagazine.org/how-spiders-spin-silk-dope-into-natures-toughest-material-20261028/