After hours: January 29 at 4:08:45 PM EST Loading Chart for BHB ...

The spiraled tusk juts from the head and can grow as long at 10 feet. Unlike some whale species that migrate, narwhals spend their lives in the Arctic waters of Canada, Greenland, Norway and Russia.

Hundreds of volunteers went looking for thousands of homeless people. Here’s what they found. The point-in-time count comes at a particularly unstable moment for those sleeping outside.