Why are wild pigs in California turning blue inside?

[Catherine]

The insides of wild pigs in California are blue, seriously blue. The reason is not so good.
Rat poisons are usually  dyed so that the poisoned animal appears dyed. The wild pigs have been eating rat poison.
They haven't eaten enough to kill them, but it is enough to dye their insides.
Other animals in the area are probably exposed as well. That means rat poisons are being eaten by non target animals.
The poison is in the food chain. Predators like hawks and owls could easily ingest a lethal dose.
Humans are at risk too.

https://www.sciencealert.com/wild-pigs-t...g-warnings

Poison for pest control is very dangerous for the environment. Once it is out there, it is impossible to control.
It can keep on poisoning the environment for years to come. We need to find better ways of dealing with rats.
Humans are at risk from these poisons. Once it is in the food chain we can be poisoned too.
Whether we eat a poison contaminated animal or poison contaminated food, we are at risk.
If we don't care about the environment, we should at least care about ourselves.
Of course, to care for ourselves, we do need to care for the environment.