Is the Berigia land bridge and berigia land bridge the same thing?

Yes, the Berigia land bridge and Bering land bridge refer to the same geological feature. This land bridge connected Asia and North America during periods of low sea levels, particularly during the ice ages. It facilitated the migration of humans and animals between the two continents. The term "Beringia" is often used to describe the broader region, including the land and sea areas around the bridge.