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PBS News Hour

Scientists use new tech to track monarch butterfly migration

Season 2026 Episode 11 | 4m 53s

Monarch butterflies make one of the most extraordinary migrations in the natural world, often traveling thousands of miles across North America. Now, scientists are using new tracking technology to get a greater understanding of those journeys. Ali Rogin speaks with Dan Fagin, a Pulitzer Prize-winning journalist who teaches science journalism at New York University, to learn more.

Major corporate funding for the PBS News Hour is provided by BDO, BNSF, Consumer Cellular, American Cruise Lines, and Raymond James. Funding for the PBS NewsHour Weekend is provided by Consumer Cellular and Cunard Cruise Line. For a complete list of funders for the PBS NewsHour and PBS NewsHour weekend, click here.
Extras
Watch • 6:31
PBS News Hour
How social media lures migrants into treacherous journeys
How social media lures migrants into undertaking treacherous journeys
Clip: S2026 E11 | 6:31
Watch • 6:41
PBS News Hour
Highlights from PBS News Weekend as show goes off the air
Highlights from PBS News Weekend as show goes off the air
Clip: S2026 E11 | 6:41
Watch • 26:52
PBS News Hour
January 11, 2026 - PBS News Weekend full episode
January 11, 2026 - PBS News Weekend full episode
Episode: S2026 E11 | 26:52
Watch • 1:44
PBS News Hour
News Wrap: Iran warns U.S. against supporting protesters
News Wrap: Iran threatens retaliation if U.S. intervenes in protest crackdown
Clip: S2026 E11 | 1:44
Watch • 5:15
PBS News Hour
Report raises concerns about generic drug quality testing
Investigation raises concerns about lack of FDA quality testing for generic drugs
Clip: S2026 E11 | 5:15
Watch • 2:34
PBS News Hour
News Wrap: Iran threatens protesters with death penalty
News Wrap: Iran threatens death penalty for protesters as tensions escalate
Clip: S2026 E10 | 2:34
Watch • 5:45
PBS News Hour
ICE shootings spark outrage, protests across the country
ICE shootings spark outrage, protests across the country demanding accountability
Clip: S2026 E10 | 5:45
Watch • 9:29
PBS News Hour
Critics call 1st Myanmar election since military coup a sham
Critics call Myanmar’s first elections since military coup a sham as civil war rages on
Clip: S2026 E10 | 9:29
Watch • 6:14
PBS News Hour
New book looks inside controversial tech firm Palantir
New book offers glimpse inside world of controversial tech firm Palantir and its CEO
Clip: S2026 E10 | 6:14
Watch • 26:44
PBS News Hour
January 10, 2026 - PBS News Weekend full episode
January 10, 2026 - PBS News Weekend full episode
Episode: S2026 E10 | 26:44