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Tetramethylenedisulfotetramine (TETS) is an organic compound used as a rodenticide (rat poison). [2] It is an odorless, tasteless white powder that is slightly soluble in water, DMSO and acetone, and insoluble in methanol and ethanol. It is a sulfamide derivative. It can be synthesized by reacting sulfamide with formaldehyde solution in ...
When one of these solutions was placed next to another solution the rats had been given a conditioned taste aversion, the rat would choose the aversive. Scientists theorize that in terms of evolution, because rats are unable to vomit and immediately purge toxins, rats have developed a strong "first line of defense", which is their sense of ...
Secondary poisoning is caused by eating poisoned prey, showing how predators are effected not being the target within the environment. [17] In 2008, after assessing human health and ecological effects, as well as benefits, [13] the US Environmental Protection Agency (EPA) announced measures to reduce risks associated with ten rodenticides. [25]
Researchers were able to confirm that sensations from the rat's whiskers were being processed by the human brain cells. They also engineered cells that were sensitive to a colored light, then ...
"Behavioral sink" is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation.The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [1]
Rats are also associated with human dermatitis because they are frequently infested with blood feeding rodent mites such as the tropical rat mite (Ornithonyssus bacoti) and spiny rat mite (Laelaps echidnina), which will opportunistically bite and feed on humans, [57] where the condition is known as rat mite dermatitis.
The LD 50 (median lethal dose) for pure oxalic acid in rats is about 375 mg/kg body weight, [29] or about 25 grams for a 65-kilogram (143 lb) human. Although the oxalic acid content of rhubarb leaves can vary, a typical value is about 0.5%, [ 30 ] so almost 5 kg of the extremely sour leaves would have to be consumed to reach the LD 50 .
Scientists have successfully created a two-headed rat — and humans might be next. A team of Chinese researchers wrote a paper about the surgery together with Italian neurosurgeon Sergio Canavero.