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Content with tag body size .

Dwarfism in continental populations of natterjack toads in the absence of genetic isolation

Ample variation in body size is common in vertebrates over extensive geographical distances, or in isolated populations, where effective geographical barriers may cause dwarfism or gigantism. The...

Larger brain size entails a greater risk of extinction in mammals

How brain size directly and indirectly influences vulnerability to extinction across 474 mammalian species was evaluated. Under current conditions, the constraints on life-history imposed by large...

The effect of body size and habitat on the evolution of alarm vocalizations in rodents

When confronted with a predator, many mammalian species emit vocalizations known as alarm calls. Vocal structure variation results from the interactive effects of different selective pressures....

Mirror, mirror! Where should I settle?

The matching habitat choice hypothesis holds that individuals with different phenotypes select the habitats to which they are best adapted to maximize fitness. Despite the potential implications of...