At the Eden Project in Cornwall, England, morning mist covers 4,500 different plant species. The tourist attraction's tropical biome is the largest indoor rainforest in the world.

Eden Project

At the Eden Project in Cornwall, England, morning mist covers 4,500 different plant species. The tourist attraction's tropical biome is the largest indoor rainforest in the world.
Photograph by Jonathan Blair, Nat Geo Image Collection

30 compelling photographs discovered in the Nat Geo archives

Spring has sprung in the Northern Hemisphere: Temperatures are rising, trees are sprouting, flowers are blossoming. 

For many, spring is a celebration of change. When curating this month’s selection, I looked for the essence of spring, picking images that show the joy of rebirth, fresh air, and vibrant colors.    

One of my favorite images, by photographer Paul Zahl, depicts a brightly colored Costa Rican variable harlequin toad perched on a plant. Today, the tiny frog is listed as critically endangered due to environmental changes caused by climate change. (The rediscovery of an "extinct" toad offers hope amid an amphibian apocalypse.) 

I chose Jim Richardson’s photo of Kansas’s vast, lush Flint Hills—one of the last places in North America where tallgrass prairie survives—to celebrate Earth Day

In Michael “Nick” Nichols’ image of a nursery in Nairobi, Kenya, elephants orphaned by poachers playfully vie for a bottle of formula. They’ll eventually be returned to the wild—signaling a hope for the future.

Breann Birkenbuel is the editor for Photo of the Day. Melody Rowell writes and researches the captions.

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