evolution
How birds got their wings
Fossil data show scaling of limbs altered as birds originated from dinosaurs
Tue, 2013-09-17 12:48
Birds originated from a group of small, meat-eating theropod dinosaurs called maniraptorans sometime around 150 million years ago. Recent findings from around the world show that many maniraptorans were very bird-like, with feathers, hollow bones, small body sizes and high metabolic rates.
Contact Information
Contact:
Chris Chipello
Organization:
Media Relations Office
Email:
christopher [dot] chipello [at] mcgill [dot] ca
Office Phone:
514-398-4201
Category:
Source Site:
/newsroom
Mining ancient ores for clues to early life
Scientists probe Canadian sulfide ore to confirm microbial activity in seawater 2.7 billion years ago
Mon, 2012-12-10 12:48
An analysis of sulfide ore deposits from one of the world’s richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were actively feeding on sulfate in the ocean and influencing seawater chemistry during that geological time period.
Contact Information
Contact:
Chris Chipello
Organization:
Media Relations Office
Email:
christopher [dot] chipello [at] mcgill [dot] ca
Office Phone:
514-398-4201
Mobile Phone:
514-717-4201
Category:
Source Site:
/newsroom
Classified as: