Wildlife enthusiast Derek Keith Burgoyne filmed a bull moose dropping both antlers simultaneously while on a visit to Plaster Rock in New Brunswick, Canada Kelli Bender is the Pets Editor at PEOPLE.

The biggest males weighed 1,500 pounds, about the same as an Alaskan moose, and they sported the largest antlers the world has ever known—12 feet across, weighing almost 90 pounds. They were ...