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Content with tag evolution .

Researchers confirm the tendency of vertebrates to dwarfism and gigantism in islands

An international study led by a researcher from Doñana Biological Station (EBD-CSIC) revisits the island rule in vertebrates and confirms the tendency of small-sized and large-sized species towards...

Trait evolution across the tree?of?life of freshwater macroinvertebrates

The rates of species and trait diversification vary across the Tree?of?Life and over time. Whereas species richness and clade age generally are decoupled, the correlation of accumulated trait...

Lack of evolution of sexual size dimorphism in Heteromyidae (Rodentia)

One paradoxical finding in some mammals is the presence of male–male intrasexual competition in the absence of sexual size dimorphism. It has been a major goal of evolutionary biologists for...

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....