*"Tyagaraj",9-14-14,CBM Compound, Uplands, Visakhapatnam 530 003. B Pre Eminent Parasite Hunter: The commemorative stamp was issued by Brazil on 28 Dec 1959 to mark the centenary of the discovery of Schistosomiasis by Bilharz. The stamp depicts the profile of Dr Piraja da Silva and an inset showing the leaf-shaped adult male trematode (fluke) of S. mansoni holding a single threadlike female in ...

Members of some social insects adjust their behaviours depending upon social context. Such plasticity allows colonies to sustain efficiency of the whole without the cost of additional production of individuals or delayed responses to perturbations. Using the recently discovered social clonal stage of trematode parasites, we investigated whether members of the reproductive caste adjust their def...

Bond and Uysal (this issue) complain that expert lie detectors identified by O'Sullivan and Ekman (2004) are statistical flukes. They ignore one class of experts we have identified and misrepresent the procedures we use to identify the others. They also question the psychometric validity of the measures and protocol used. Many of their points are addressed in the chapter they criticize. The fru...

Aquatic vertebrates display a variety of control surfaces that are used for propulsion, stabilization, trim and maneuvering. Control surfaces include paired and median fins in fishes, and flippers and flukes in secondarily aquatic tetrapods. These structures initially evolved from embryonic fin folds in fishes and have been modified into complex control surfaces in derived aquatic tetrapods. Co...