Carmen Viera is Professor and Director of Department of Animal Biology of Facultad de Ciencias, Universidad de la República and Director of the Laboratory of Behavioral Ecology of Instituto de Investigaciones Biológicas Clemente Estable, Uruguay founded by her in 2008. She is researcher in the Sistema Nacional de Investigadores (SNI) Professor of Entomology of Facultad de Ciencias and Coordinator of Zoology in Post-graduation Program (PEDECIBA). She has experience in behavioral ecology and sociobiology.Marcelo O. Gonzaga is professor at Universidade Federal de Uberlândia, Minas Gerais, Brazil, since 2008. He earned his bachelor’s degree at Universidade Federal de Minas Gerais (1996), and his master’s and doctorate at Universidade Estadual de Campinas (1999, 2004). He had a post-doctoral fellowship in Universidade Estadual de Campinas (2006) and developed a project in the Program “Young Researches Awards” of FAPESP in Department of Ecology and EvolutionaryBiology of Universidade Federal de São Carlos (2007-2008). He was the coordinator of the Post-graduation Program in Ecology and Conservation of Natural Resources of Universidade Federal de Uberlândia (2012-2014). He has experience in behavioral ecology, acting mainly in the following subjects: spider webs construction and variation, sociobiology, host behavioral manipulation by parasitoids, parental care in spiders.