HOUSTON, United States (AFP) – What mysterious forces are at work at the Dallas zoo? In recent days, the largest zoo in the southern US state of Texas has been the scene of suspicious incidents, most recently the death of a beloved vulture — and police are on the case. “Everything is under suspect at this point — internal, external — we’re looking at every single option,” zoo president Gregg Hudson told reporters Monday. The 35-year-old […]