Last Friday AFL alumni Rhea von Busse visited and gave a talk about her postdoc work at Brown University. Rye Waldman, also at Brown, also presented his work on flow visualization using dual plane light sheets and his work on the aerodynamics of compliant membranes. Rhea showed some really nice X-ray films of flying bats. These experiments nicely showed the movements of the wing skeleton during flight. Rhea also showed that bats can swim, but if they really liked it was not apparent from the footage.