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Off! (brand) Off! OFF! Unscented insect repellent. Off! (stylized as OFF!) is an insect repellent brand from American corporation S. C. Johnson & Son, produced in Finland. Its active ingredient is DEET ( N, N -diethyl- m -toluamide) or metofluthrin which is the most common ingredient in insect repellants. [ 1] It was first sold in 1957.
Most projectiles used by terrestrial animals are liquids. Among invertebrates there are a number of examples. Velvet worms can squirt out a slimy adhesive fluid from glands on the sides of their head, and use it to trap their prey. The spitting spiders Scytodes can spit a venomous sticky fluid that traps its victims and also poisons them. [ 1]
Metriini. Bombardier beetles are ground beetles (Carabidae) in the tribes Brachinini, Paussini, Ozaenini, or Metriini—more than 500 species altogether—which are most notable for the defense mechanism that gives them their name: when disturbed, they eject a hot noxious chemical spray from the tip of the abdomen with a popping sound.
August 11, 2024 at 3:15 PM. U.S. health officials on Friday approved a nasal spray to treat severe allergic reactions, the first needle-free alternative to shots like EpiPen. The Food and Drug ...
Health effects of pesticides may be acute or delayed in those who are exposed. [1] Acute effects can include pesticide poisoning, which may be a medical emergency. [2] Strong evidence exists for other, long-term negative health outcomes from pesticide exposure including birth defects, fetal death, [3] neurodevelopmental disorder, [4] cancer, and neurologic illness including Parkinson's disease ...
Black widow spider bites. What they look like: When a black widow spider bites, it typically causes a painful pinprick sensation. The site of the bite then swells slightly and forms a red rash ...
Defense in insects. Insects have a wide variety of predators, including birds, reptiles, amphibians, mammals, carnivorous plants, and other arthropods. The great majority (80–99.99%) of individuals born do not survive to reproductive age, with perhaps 50% of this mortality rate attributed to predation. [ 1] In order to deal with this ongoing ...
August 9, 2024 at 10:38 AM. By Sriparna Roy and Christy Santhosh. (Reuters) -The U.S. Food and Drug Administration has approved ARS Pharmaceuticals' nasal spray as the first needle-free emergency ...