Silk properties of spider egg sacs

Dr. Todd Blackledge and Kate Karkosiak


Spiders’ egg sacs are made up of multiple types of spider silk and offer protection to developing embryos and spiderlings. Egg sacs exhibit extreme diversity across species in shape, color, texture, and placement, and little is currently known about the importance of these variations for appropriate spider development.

I am interested in studying the effect of egg sac variations on the insulative properties, permeability, and other protective mechanisms of egg sac silk barriers related to their environmental or predatory threats.

Skills you will acquire:

Knowledge about spider biology

Knowledge about spider silk

Field experience

Research experience

Scientific reading/writing


Click here for more information about Dr. Blackledge’s research.