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"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]
“People talk about the ethics of doing ... — assuming safety and efficacy — unless one is an animal-rights believer who thinks that pigs have equal value to humans. But they don’t. A rat ...
In 1954, the Universities Federation for Animal Welfare (UFAW) decided to sponsor systematic research on the progress of humane techniques in the laboratory. [2] In October of that year, William Russell, described as a brilliant young zoologist who happened to be also a psychologist and a classical scholar, and Rex Burch, a microbiologist, were appointed to inaugurate a systematic study of ...
Animal ethics is a branch of ethics which examines human-animal relationships, the moral consideration of animals and how nonhuman animals ought to be treated. The subject matter includes animal rights, animal welfare, animal law, speciesism, animal cognition, wildlife conservation, wild animal suffering, [1] the moral status of nonhuman animals, the concept of nonhuman personhood, human ...
Scientists think tickling and laughter have a social role — in humans and in other animals, including rats. Skip to main content. 24/7 Help. For premium support please call: 800 ...
Rodents such as rats are the most common model in researching effects of cardiovascular disease, as the effects on rodents mimic those in humans. [13] Rats have also been used as tools in research to try to find if there is a difference in the effects of cocaine on adults versus adolescents. [14]
Multiple studies have demonstrated that rats will perform reinforced behaviors at the exclusion of all other behaviors. Experiments have shown rats will forgo food to the point of starvation in exchange for brain stimulation or intravenous cocaine when both food and stimulation are offered concurrently for a limited time each day. [2]
Marble burying is an animal model used in scientific research to depict anxiety or obsessive–compulsive disorder (OCD) behavior. It is based on the observation that rats and mice will bury either harmful or harmless objects in their bedding. [1] While widely used there is significant controversy over the interpretation of its results.