Abstract: Secretions and protein characterized toxins, which are produced by living things, may affect many organisms in different ways, and may alter the various structure of organisms with acute and chronic toxication. In this review, it was aimed to re-evaluate the studies on the possible negative effects of some toxins effective on mammals, and to create a resource for future studies by summarizing the obtained data. The available literature information were arranged as review by revising in the direction of the researches in Kafkas University, Faculty of Arts and Sciences, Laboratories of Biology Department. It has been noted that living beings were directly or indirectly exposed to diverse toxins. In this review, some effects of on mammals exposed to, have been tried to be determined by means of toxicological data. Although some of the toxins have no lethal in the reports, some others have destructive effects in the reports were revealed. Based on the examined data, it has been determined that different levels of toxicity are caused in the mammals, depending on the amount of exposure of the toxins. Also toxicity increases in parallel with the amount of toxin that is exposed and the exposure period. Additionally, it was reported that the effects may vary depending on the type of toxin. As a result, the research results evaluated are similar to each other. 

Toxins, are a number of toxic substances that the living things secrete and protein character, may affect many organisms in different ways, and may alter the various structure of organisms with acute and chronic toxication. The evaluation of the studies on the possible effects of some toxins which are the effective toxicants on mammals by re-examining, and the creating resource for the next studies by summarizing the data obtained were aimed in this review. The available literatural information were arranged as review by revising in the direction of the researches in Kafkas University, Faculty of Arts and Sciences, Department of Biology Laboratories. It has been noted that living beings were directly or indirectly exposed to diverse toxins. In this review, some effects of on mammals exposed to, have been tried to be determined by toxicological data. It has been revealed that some toxins have no lethal effect, some others have destructive effects in various reports. Based on the examined information, it has been determined that different levels of toxicity are caused in the mammals, depending on the amount of exposure of the toxins. And also toxicity increases in parallel with the amount of toxin that is exposed and the exposure period. Additionally, it was reported that the effects may vary depending on the type of toxin. As a result, the research results evaluated are similar to each other.