Benjamin H. Rossi

Essential Access Health · Learning Exchange

Ocular examinations were completed on a group of 10 Atlantic puffins (Fratercula arctica), 5 males and 5 females that ranged in age from 8 months to older than 30 years. The exams consisted of intraocular pressure/rebound tonometry, tear production/phenol red thread test, central corneal thickness/ultrasound pachymetry, and corneal sensitivity/esth...

Ivermectin is routinely used as an anthelmintic in amphibians at the National Aquarium, Baltimore (MD). Presumptive inadvertent overdose occurred in dendrobatid frogs administered oral ivermectin via micropipette at volumes below the 0.5 μl lower limit of the unit. Forty-eight frogs, 19 Dendrobates auratus (green and black poison dart frog) and 29...

Under sexual conflict, males evolve traits to increase their mating and reproductive success that impose costs on females. Females evolve counteradaptations to resist males and reduce those costs. Sexual harassment is a form of sexual conflict in which males make repeated, costly attempts to mate. Costs to female foraging or predation risk have bee...

Sexual conflict, when the evolutionary interests of males and females diverge, is a major force driving the evolution of males and females. Males evolve harmful traits that benefit males at the expense of female fitness. Females evolve counter-adaptations to reduce the harmful trait’s effects, leading to a sexual arms race. However, this evolution...