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1. Which is a good cold and hot plate pain tester?

One of the oldest topics in behavioral research is: how much of animal behavior is innate and how much is acquired? Mammals are more adept at learning, while insects and birds have voluptuous instinctual behavior, so research on instinctual behavior often focuses on insects and birds. American scholar W. Craig conducted long-term research on pigeons and pointed out in 1918 that instinctive behavior is not just a series of stereotyped reflex actions; At the beginning, animals exhibit restlessness and four-way search under the drive of *, and many of these movements are learned. Only when suitable stimuli (such as food) are found, instinctive behavior enters the completion stage and stereotyped reflex movements appear; Afterwards, there may be a period of time when animals dislike the original stimulus and eventually enter a state of comfort and no desire. At the same time, German scholar O. Heinrott conducted systematic research on ducks and geese while working in zoos. He emphasized the search for homologous behavior, just like studying homologous structures in comparative anatomy, which can elucidate the evolutionary pathways of behavior. Another German scholar, J.von Huxler, pointed out that only a portion of key stimuli are truly effective in the surrounding environment that animals perceive. It is these stimuli that trigger the animals internal mechanisms to release instinctual responses. These insights had a significant impact on early behavioral researchers. Dutch scholars N. Tinbergen and K.Z. Lorenz are both regarded as the founders of contemporary behavioral biology. His early research focused on identifying key stimuli that trigger instinctual behavi

or, including the hunting and anti nesting behavior of slender wasps, the begging behavior of young birds towards their mother birds, and the reproductive behavior of three spined fish. The reproductive behavior of Trionyx trifasciatus includes a series of successive actions, such as occupation, courtship, mating, spawning and spawning. He further extended K.Z. Lorenzs theory based on this: the completion of one instinctive action promotes the occurrence of the next instinctive action, thus forming a behavioral chain. In 1949, he moved to England to work. Since the 1950s, he began systematic comparative research on seagulls, attempting to derive the evolutionary path of seagull signaling behavior. Austrian scholar K. von Frischs research interests have always revolved around how animals acquire and exchange information. He established conditioned reflexes for food, color, and sound on fish in his early years, thus confirming that fish have color and sound perception. Afterwards, he also confirmed that bees have color vision. In the mid-20th century, he discovered bees going out to search for food, using dance movements to notify the hive about the direction and distance of the honey source. Since the 1950s, behavioral biology and comparative psychology have gradually approached each other, complementing each others strengths and weaknesses. Represented by the school led by N. Tinbergen that emerged in England in the 1950s, many scholars placed equal emphasis on laboratory and field work. Macroscopically, people are working from the deserts of Africa, the jungles of South America, to the polar regions. Behavioral scientists use methods such as covert observation of wild animals in situ, filming movies, "tag hunting," aeri

1. Which is a good cold and hot plate pain tester?

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