When research scientists tracking P-22, the late beloved lion of Griffith Park, went to change the batteries in his GPS collar in 2014, they found him suffering from mange, a parasitic disease of the ...

A new study using American kestrels, a surrogate test species for raptorial birds, suggests that they are at greater risk from poisoning from the rodenticide diphacinone than previous believed. The ...

The California Department of Pesticide Regulation will host a virtual public workshop on Sept. 24 to discuss proposed mitigation measures for first- and second-generation anticoagulant rodenticides.

Feral hogs with "slushie-blue" innards turned up in Monterey earlier this year—and not for the first time. A young wild boar stands at Joseph D. Grant County Park in Santa Clara County, California.

Why Do Farmers Use Diphacinone And Why Is It Blue? Diphacinone is used to control populations of squirrels, rats and mice. The poison is placed in bait stations. It is coloured blue by pest control ...

Unexpected exposure to rodenticide is turning California’s wild pigs blue, state authorities say. “I’m not talking about a little blue,” Dan Burton, owner of a wildlife control company in Salinas, ...

In California, wildlife officials are investigating a bizarre phenomenon: wild pigs with bright blue muscle and fat. These unsettling discoveries are linked to the consumption of diphacinone, a ...