3. Blood Disorders. Blood disorders such as hemophilia and leukemia can cause unexplained bruising, often because your blood fails to clot properly. If you have severe and frequent unexplained bruising, it's a good idea to see a physician to rule out such disorders, especially if it seemed to come on suddenly.
Puffer fish contain the potent neurotoxin tetrodotoxin. TTX is thought to be synthesized by a bacterial or dinoflagellate species associated with the puffer fish. The toxin is concentrated in the liver, gonads, and skin. The level of toxicity is seasonal, and, in Japan, fugu is served only from October through March.
Research suggests that the frog eats insects that carry the poison, and that these insects get their poison from plants. Poison dart frog. Via The Nature Conservancy/Sergio Pucci. According to Oxford Dictionaries, âpoisonous organismsâ can be defined rather simply: An organism that produces toxins that are harmful when the animal or plant is touched or eaten. Notably, there are creatures that are poisonous and venomous. And as a final point in the discussion of poison and venom, there is a difference between talking about âpoisonous creaturesâ and âpoisons.â âPoisonâ actually has a rather broad definition; it is simply any chemical substance that causes a biological disturbance in other organisms. So What Are Toxins? Unlike venom and poison, the word âtoxinâ is not defined by a specific method of delivery. Rather, a toxin has a broader meaning. It is a biologically produced chemical substance that impacts biological functions in other organisms. In this respect, anything that is synthesized (by humanity or other intelligent life) is not considered a toxin. Rather, a âtoxicantâ is a chemical substance that is synthesized/produced by human activity. In short, toxins and toxicants are narrower definitions for the word âpoison.â. So to sum: Poisons are any chemical substances that impact biological functions in other organisms.