Pterosaur <i>Darwinopterus</i> (IMAGE)

University of Southampton

Pterosaur <i>Darwinopterus</i>

Caption

The image shows sexual dimorphism in the pterosaur Darwinopterus. Males had large head crests while females were crestless. This dimorphism is a clear indication that sexual selection pressure was shaping the evolution of these animals.

Credit

Mark Witton

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.