In just ten minutes, an ant could learn to identify urine from mice with cancerous tumors, a new study findsScientists want to train insects to test humans for cancer. In a new study, published Wednesday in Proceedings of the Royal Society B, ants could differentiate between the smell of urine from healthy mice and from mice with cancerous tumors. The research serves as a proof of concept demonstrating that ants could someday be used as a fast, inexpensive and noninvasive tool for detecting cancer, the authors write. “This is an exciting direction,” Debajit Saha, a biomedical engineer at Michigan State...