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Time-Lapse: Beautiful Cacti Bloom Before Your Eyes

Filmmaker Greg Krehel captures 15 varieties of stunning Echinopsis cactus flowers blooming in this incredible time-lapse. The process happens overnight, and the flowers last for only a day, with a peak period occurring for a mere hour or two.

Read more about Greg's process on Proof.

The Short Film Showcase spotlights exceptional short videos created by filmmakers from around the world and selected by National Geographic editors. We look for work that affirms National Geographic's belief in the power of science, exploration, and storytelling to change the world. To submit a film for consideration, please email sfs@natgeo.com. The filmmakers created the content presented, and the opinions expressed are their own, not those of National Geographic Partners.