Love lions? You can send money towards lion conservation in Botswana simply by watching a two-minute preview of a new nature documentary. Watch the YouTube trailer for “The Last Lions” below, and National Geographic will send a dime to lion and big cat conservation in Botswana.

Narrated by Jeremy Irons, “The Last Lions” follows the journey of a lioness named Ma di Tau (“Mother of Lions”) and her cubs, who contend with raging fires, a rival pride, a crocodile-infested river, raging buffalo, and other challenges. Alongside the tale of those lions, the documentary weaves in the bigger story of our planet's dwindling lion populations.

The filmmakers Dereck and Beverly Joubert of National Geographic have established an emergency action fund called Big Cats Initiative, “to drive the world’s attention to big cats and to develop real solutions to stop the decline that has seen lion numbers drop from 450,000 to 20,000 in 50 years.” That fund is where a dime will be sent if you watch the trailer. National Geographic will cap its donation at $100,000 — but getting to that number will take 1 million viewings, and the trailer currently only has about 150,000 views.

Want more ways to help? The Big Cat Initiative has lots of cute ways from participate — from donating $5 for a chance to upload a photo of your cute little house cat to the “Little Kitties for Big Cats” online album to helping a child write a letter to lions, to be delivered to leaders in Africa. There’s even a chance to see the lions up close; you can enter a sweepstakes for a 12-day private safari for two in Botswana.

“The Last Lions” is out in select theaters in L.A., New York City, and Washington, D.C., now, and will open in many more theaters in March.

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