I was on sabbatical this year, so I spent from January-March as a visiting scientist collecting animals at the Smithsonian Marine Station in Fort Pierce, FL. It is a little different, working in a branch of the Smithsonian Museum, because the work is very individually focused and there are few students there. There are some staff scientists, visiting scientists and postdoctoral fellows, each of them working on a group of marine animals or plants. I was collecting and identifying tunicates, hemichordates and lancelets there, all important invertebrates to understand and study chordate origins. These invertebrates are closely related but have very different adult body plans. I was able to find some juvenile hemichordates there, which were the perfect age for our studies on gill bar development. The photo above is of the animals that I collected and photographed. This photo will be published soon in a chapter on chordate origins. Our research is showing that the hemichordate in A and lancelet in C are more similar in body plan than the tunicate shown in B, even though the tunicate and lancelet are more closely related to each other.
Aug. 23, 2006
Prof. Billie Swalla