One of the curious things in the world of birds is why most species come in only one color form, while others come in many. We can start with the western tanager. Adult males all look the same. Adult ...

A large-scale investigation of carnivoran brain diversity, providing a unified description of folding patterns, their relationship to behaviour and ecology, and the foundation for future ...

Within-species variation in the stress response may also play a role in mediating the speciation process: in species with broad variation, there will always be some individuals that can tolerate an ...

Patterns of morphological divergence across species’ ranges can provide insight into local adaptation and speciation. In this study, we compared phenotypic divergence among 4,221 crickets from 337 ...

Psychologists from Durham University, UK, have observed the behavior of 90 sanctuary-living apes to establish whether bonobos were more likely than chimpanzees to comfort others in distress. The study ...

AMES, Iowa – A new Iowa State University study focusing on insulin signaling uncovered surprising genetic diversity across reptiles, birds and mammals. The research sets the stage for an improved ...

Restoring lost variation—bringing back genetic diversity that has been lost from the gene pool of the modern populations of threatened species, using DNA from samples of the species collected decades ...

Juvenile bonobo embraces a distressed companion during post-conflict consolation. Psychologists from Durham University, UK, observed the behaviour of 90 sanctuary-living apes to establish whether ...