Why are there big dogs like Great Danes and small dogs like Toy Poodles? Find out! Not all animal adaptations are because of a natural process. We have hundreds of different breeds of dogs because of ...

Through intensive breeding, humans have pushed breeds such as pug dogs and Persian cats to evolve with very similar skulls and "smushed" faces, so they're more similar to each other than they are to ...

Tiffany Kosch is a member of One Health Research Group at the University of Melbourne. Her research is currently funded by the Australian Research Council (grants FT190100462 and LP200301370).

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...