Here's why:
* Different immune systems: Animals have different immune systems than humans, so they don't react to the urushiol oil in poison ivy in the same way.
* Fur and skin: Their fur and skin act as a barrier, preventing the urushiol oil from directly contacting their skin.
* Different sensitivities: Some animals, like horses and goats, might show some mild reactions like a slight irritation, but it's not the same as a human rash.
However, it's still important to keep animals away from poison ivy:
* Ingestion: Animals can ingest poison ivy, which can cause more serious symptoms like vomiting, diarrhea, and swelling.
* Secondary contact: Even if your pet doesn't come into direct contact with poison ivy, they could get the urushiol oil on their fur from touching something that's contaminated, and then transfer it to you or other animals.
If you suspect your pet has come into contact with poison ivy, it's best to consult your veterinarian. They can advise you on the best course of action.