The Hine's emerald dragonfly is the only dragonfly on the federal endangered species list. Summer drivers kill about 3,300 of them each year.
The death is the third giant lizard to perish this year at zoo infamous for hundreds of animal deaths.
The animal died from head injuries while being transported, blindfolded, in an open truck, an animal welfare agency said.
The start of racing season begins with a spate of horse injuries for California racetrack.
As many as 10,000 dogs may be slaughtered for food over the 10 days of the event.
Government deems 420 species of wild animals as rare or endangered, including giant pandas, golden monkeys, Asian black bears and pangolins.
The cost of European standards does not leave better cared for chickens out in the cold when it comes to competitive prices.