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Many large opossums (Didelphini) are immune to the venom of rattlesnakes and pit vipers and regularly prey upon these snakes. [46] This adaptation seems to be unique to the Didelphini, as their closest relative, the brown four-eyed opossum , is not immune to snake venom. [ 47 ]
Urushiol-induced contact dermatitis (also called Toxicodendron dermatitis or Rhus dermatitis) is a type of allergic contact dermatitis caused by the oil urushiol found in various plants, most notably sumac family species of the genus Toxicodendron: poison ivy, poison oak, poison sumac, and the Chinese lacquer tree. [1]
The immunity was initially thought to come from an immune response leading to the production of antibodies, but in fact it comes from toxin-neutralizing proteins found in opossum serum. [ 7 ] [ 8 ] These proteins are produced by the opossum prior to any encounter with a venomous snake, thus this immunity is not learned but inherited.
Poison Ivy, a well-known toxic plant common in Texas especially during the spring and summer, causes an itchy painful rash. This is caused by its sap that has a clear liquid called urushiol.
Here's what you need to know about some of the more common plants to stay away from, like poison hemlock, poison ivy and poison oak.
An expert from Franklin County's Keystone Health shares information about poison ivy, oak and sumac, and the effects of the poisonous plants. Take Care: What you need to know about poison ivy, oak ...
Urushiol / ʊ ˈ r uː ʃ i. ɒ l / is an oily mixture of organic compounds with allergenic properties found in plants of the family Anacardiaceae, especially Toxicodendron spp. (e.g., poison oak, Chinese lacquer tree, poison ivy, poison sumac), Comocladia spp. (maidenplums), Metopium spp.
Opossums don't look inviting but their benefits far outweigh their appearance, especially if there are dead trees in your woodlands. Opossums are nature's providers: Gentle marsupials don't get ...
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