Technology news and Jobs 
Science Dinosaurs and birds share small genomes
Science Dinosaurs and birds share small genomes | Dinosaurs and birds share small genomes |
|
| by Stephen Withers | |
| Thursday, 08 March 2007 | |
  
Featured Whitepaper
5 Best Practices for Smartphone Support
Science DiscussionsBird-like characteristics - feathers, breathing structures, nesting and parental care - have been identified in dinosaurs, suggesting they were inherited by modern birds along with the small genome, rather than small genomes co-evolving with the ability to fly. Small genomes also seem to correlate with higher metabolic rates, which ties in with the scenario that the first flying or gliding creatures launched themselves from trees or from a running start, both of which require a significant expenditure of energy. Carnivorous dinosaurs such as T-rex would also need to be fast moving to catch their prey.{moscomment} |
Tags
| < Next story in category | Previous story in the category > |
|---|
