Why cephalopod eyes do not have a blind spot

Archaeologists have found flutes made from bird bones and mammoth ivory in caves in southwestern Germany. Some date back more than 35,000 years, showing that early modern humans were making musical instruments in Ice Age Europe. Older objects have been proposed as instruments, but their identification is disputed. Music-making left physical traces tens of thousands of years before written history.

Finland fought two wars against the Soviet Union during World War II and ultimately ceded significant territory, including much of Karelia. Hundreds of thousands of people had to leave their homes. Despite these losses and later restrictions on its foreign policy, Finland avoided Soviet occupation and retained its democratic institutions and independence.