Rix, M. G., Wood, H. M., Harvey, M. S. & Michalik, P. (2021). Micro-computed tomography reveals a remarkable twin intromittent organ in spiders – a novelty for arachnids with direct sperm transfer. Frontiers in Ecology and Evolution 9(794708): 1-7. doi:10.3389/fevo.2021.794708 -- Show included taxa