Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Some much-needed relief may be on the way for beloved “flat-faced” dog breeds. After over 15 years of research, a team of scientists from the Royal Melbourne Institute of Technology in Australia and biotechnology company Snoretox have created a new treatment they say can ease breathing in flat-faced dogs. Called Snoretox-1, the new injectable treatment uses a modified version of tetanus toxin. It is  placed directly into the dog’s geniohyoid muscle—in the inside of the mouth, on top of the throat area. Snoretox-1  works to improve muscle tone in the mouth, which helps keep the airway open, and could potentially be an alternative to invasive surgery.  While pugs, bulldogs, and similar flat-faced dogs are adored by many for their snubbed-nose look, their undeniable cuteness comes at a steep cost. Generations of selective breeding have shortened the bones in the skull, blocking airflow and leading to a condition called BOAS (brachycephalic obstructive airway syndrome).This chronic upper airway obstruction condition is …