If you ever need to analyze mouse sperm, give Hamilton Thorne Biosciences a call. The company makes computer-assisted sperm analysis (CASA) systems used for human and veterinary fertility research. Hamilton Thorne Biosciences also makes laser systems and instruments that attach to microscopes to assist researchers in the laboratory. The ZILOS-tk laser is used for biopsying embryos, and the XYClone is used in animal and stem cell research. Meg Spencer (n�e Hamilton) founded Hamilton Thorne Biosciences in 2001. In 2008 the company spun off its molecular diagnostics unit to Thorne Diagnostics.