The number of amphibians is influenced, first of all, by the reduction and destruction of places suitable for their breeding: drainage, pollution, straightening of channels, concreting of the banks of reservoirs. Highways block the way amphibians approach the reservoirs where they breed. Many amphibians die on highways, are destroyed by people for no reason.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.