Scientists have successfully genetically modified chickens to make their feathers resemble those of dinosaurs. This study is part of a broader effort to understand how and why feathers evolved.
The microinjection robot detects embryos that are one-hundredth the size of a grain of rice, calculates a path, and automates the process. Credit: Andrew Alegria, University of Minnesota Twin Cities ...
A genetic study shows how human breeding choices influence ear length in dogs and why those traits persist across breeds.
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