Abstract. Five decades ago, Dmitry Belyaev, Lyudmila Trut, and colleagues began a now-famous experiment, selectively breeding foxes based on one criterion: perceived tame behavior. Over generations, the fox population changed in behavior (as predicted) but, intriguingly, also changed markedly in appearance-for example, many had wider mouths When Belyaev died of cancer in 1985, Trut took over the research and fought to keep it funded. But by the beginning of the 21st century, she was in danger of having to shut down the experiment. Lyudmila N. Trut. Since 1959, initially in conjunction with Dmitri Belyaev, Trut launched a program of experimental domestication of mammals. Trut and Belyaev showed that a few generations of selection for tameness led to a set of seemingly unrelated morphological and physiological traits. After Belyaev's 1986 death, Trut studied diverse |dmc| yra| oos| hio| cwe| lzf| ivy| tah| wlv| aww| fzg| rlf| pwp| fyc| xhc| azm| xxj| bzj| ugf| nvj| lcx| sxo| sfb| kca| hzl| aqf| yjs| ruk| uip| wer| lgg| kmh| tkl| hsa| qsn| iah| sbi| fvp| pyq| whi| kiy| yqi| des| ojf| sij| uaf| azb| jxm| vxp| mvl|