This lesson focuses on the diffusion of gas molecules across the cuticle membrane of sea spider legs and the role body size plays in the ability of sea spiders to uptake gases. Students construct model sea spider legs of varying diameters and use them to investigate the relationship between surface area-to-volume ratios and diffusion.
NASA’s Operation IceBridge, the largest airborne survey of Earth’s polar ice, uses remote sensing techniques like LiDAR (light detection and ranging), snow- and ice-penetrating radar, high resolution digital imaging, and infrared cameras to collect information on our changing ice sheets and sea ice. Several times each year a science team and flight crew head out on month-long campaigns in
ScienceNews article highlighting the work of Polar Gigantism in Antarctica expedition Principal Investigator Dr. H. Arthur Woods on sea spider physiology.