How the Snake Lost Its Legs fly embryo. His books on evolutionary developmental biology (evo-devo) include "Imaginal Discs: The Genetic and Cellular Logic of Pattern Formation" (2002), "Quirks of Human Anatomy: An Evo-Devo Look at the Human Body" (2009), and "Deep Homology? Uncanny Similarities of Humans and Flies Uncovered by Evo-Devo" (2017). In Held's view, "Quirks", "Snake", and "Deep Homology" form a trilogy on evo-devo. "How the Snake Lost Its Legs" is ostensibly organised into six chapters, but in effect into three parts. The first chapter serves as an introduction and overview. The next four chapters provide what Held calls "the meatier aspects of evo-devo" with
Butterfly World stages including eggs, caterpillars, and pupae. Passiflora Society International was established at Butterfly World to encourage research on and help share information about passion flowers, which are the source of food for many butterflies. Butterfly World has also helped establish the Boender Endangered Species Laboratory at the University of Florida, which is helping reintroduce the Schaus swallowtail to Southern Florida. Butterfly World Butterfly World is located in Tradewinds Park, Coconut Creek, Florida, United States. It opened in 1988, and is the largest butterfly park in the world, and the first park of its kind in the Western Hemisphere. The facility