Swallows and Tattoos

[caption id="attachment_10733" align="alignleft" width="548"] Barn Swallow[/caption] Swallows seemed to have captured people’s imaginations over the years. They are attractive, acrobatic, long distance migrants and one of the most aerial birds. Aristotle noticed them around 363 BC and stipulated (Aristotle didn’t always collect data or do proper or sufficient observations) that…

Bird Egg Coloration

[caption id="attachment_10724" align="alignleft" width="568"] Dinosaur Eggs[/caption] Birds are the only vertebrates that lay colored eggs. But in a new paper, Dinosaur egg colour had a single evolutionary origin, lead author Jasmina Wiemann of Yale University said that nonavian dinosaur ancestors had colored eggs as well. About a decade ago, Richard…