Skull scans on two of the oldest known mammal species have shown that that an improved sense of smell may have jump-started brain evolution in the ancestral cousins of present-day mammals.
Source: http://www.cosmosmagazine.com/news/4333/pre-mammals-had-big-brains-smell
Chyler Leigh Ciara Cindy Crawford Cindy Taylor Cinthia Moura Claudette Ortiz Coco Lee
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