sperm whales

Vessel collisions are a leading cause of death for many whale species. “School zones” for the seas could help protect them, scientists say.

Researchers have solved the puzzle of how whales generate enough airflow 1,000 metres underwater, where pressure is 100 times that at the surface.

New research from a team including a Dalhousie University biologist suggests sperm whales taught each other to avoid whalers in the 18th and 19th centuries.