A 19-year-old high school was jailed on a felony charge after police say he threatened a classmate with a gun during an ...

The Tucson Police Department said Valente Lazaro Zambrano, 19, was arrested after bringing the gun to Rincon High.

Co-author Luis Zambrano, a biologist at the National Autonomous University of Mexico, hopes the new study will raise awareness about restoring their habitat in Lake Xochimilco. As axolotls have ...