Sexual conflict can generate coercive traits in males that enhance mating success at the
expense of female fitness. Pre-copulatory sexual cannibalism—where females consume …

Males and females have divergent reproductive interests arising from their unequal
investments in offspring. This sexual conflict drives an antagonistic arms race that influences …

Mating with more than one male often provides direct or indirect benefits to female fitness
but can also increase the chance of injury and death. Costs of mating are expected to …

Chrysemys, commonly known as painted turtles, have the largest native biogeographic
range of all North American turtles. The presence of a new species, Chrysemys corniculata …

Population structure determines individuals' interactions and trade-offs with evolutionary
consequences. Male-biased populations increase intrasexual competition and intersexual …

Assortative mating is non‐random mating by the mutual choice of phenotypes or behavioral
types. In polygynandrous species, competition for mating by social rank can lead to …

We report on field observations of males biting females as part of mating attempts in the
northern map turtle (Graptemys geographica), a species in which females are much larger …

Palaeontology is a science that has always been keen to introduce new methods in its
research, since its dawn at the end of the XVIII sec. Computer-aided tests, such as Finite …

Human activities, such as urban expansion, have led to an increase in contacts between
humans and wildlife and have resulted in the loss and isolation of suitable habitats for …

Many animals aggregate for a variety of reasons. Wild painted turtles (Chrysemys picta)
aggregate at basking sites. Group basking may have asocial or social causations. I tested for …