50 years ago, air pollution was linked to more reports of animal bites
Excerpt from the March 31, 1973 issue of Science News
![A sepia tone photo of someone walking their dog on the beach at sunset.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/03/022123_ac_50ya-dog-bites_feat.jpg?fit=1030%2C580&ssl=1)
Air pollution has been linked to a higher risk of aggressive behavior in people and other animals, which may help explain why reports of dog bites rise on smoggy days.
kwphotobox/moment open/getty images plus