New research finds people at a higher risk of developing Alzheimer’s disease may begin to show changes in their memories decades earlier.
From the remarkable octopus to a river of dreams, experience compelling stories of the natural world as "Nature" returns to Arizona PBS Wednesday nights at 7 p.m.
In April 1944, Jewish prisoners Rudolf Vrba and Alfred Wetzler miraculously escaped from the Auschwitz concentration camp and fled through Nazi-occupied Poland to find refuge in Žilina, Slovakia, where they connected with the Jewish Underground. Once safe, they recounted what they left behind. Their harrowing testimony revealed the true horror of the Holocaust to the outside world, describing in forensic detail the gas chambers and the full extent of the Nazi extermination program.