The famous German scientist, naturalist and writer Professor Bernhard Grzimek devoted his whole life to animal welfare. "The pristine nature must be protected no less than we protect the paintings of Raphael, Cologne Cathedral, Indian temples, stone colossi of Abu Simbel," he writes in his books and more than once emphasizes that works of art and architectural monuments can be restored if desired, but destroyed Steller's cow or zebra quagga will never see a single person again. In the book "Wild Animal and Man," Professor Grzimek talks about various approaches to solving the most important problem of our time - nature conservation in different countries.