Ottawa polar explorer adjusting to new normal after 2011 concussion

Natalia Rybczynski has stood on top of the world and the bottom of it, in the high Canadian Arctic and Antarctica.
Today she picks up the pieces from those paleobiology visits — fascinating fossils of prehistoric camels, bears, sloths — that also represent pieces of her own recent past, when she was able to venture far afield, toting a massive pack.
Rybczynski, 46, named one of Canada’s top explorers by Canadian Geographic magazine in 2015, hasn’t been to one of the polar