“Peak to Peak,” the third-place winner of the Yale Environment 360 Video Contest, focuses on a herd of bighorn sheep in Montana and features remarkable scenes of lambs as they gambol along the slopes of the northern Rockies. Produced by Jeremy Roberts, the video follows biologist Jack Hogg, who has been studying this herd for three decades, as he monitors the sheep and talks about the possible impact of climate change on the animals’ future.

Roberts’ camera captures the spunk and playfulness of the lambs and their evasive dashing, which helps them develop defensive tactics for escaping predators. Roberts gets within a dozen yards of the herd, and his video shows the lambs leaping off rocks, jostling and kicking each other, and butting heads. “The joyful nature of it infected me immediately,” he recalls. “It was one of most exhilarating experiences I’ve had filming wildlife.”

About the contest: “Peak to Peak” is the third-place winner of the 2014 Yale Environment 360 Video Contest. Entries were received from four continents, with a prize of $2,000 going to the first-place winner.

