Your friend has a naive worldview mostly from news and other media
<span>Constriction and dilation of blood vessels controls the distribution of blood to various tissue areas</span>
Explanation:
Though cases of a dog being affected by poison ivy are rare, if you have a canine companion with sensitive skin, you should keep him away from the plant, just in case. “After being in an area with poison ivy or oak, you should wash your dog,” Nold suggests.
The Black footed ferret would have lost it's main source of food!