Photo of the Day

sea lion swimming

Mother Nature Network's Photo of the Day is a way to bring you more great photos, a place to share everything beautiful about Earth — from landscapes and wildlife to beautiful design. As a bonus, some of these great images are from MNN readers and fans. If you're interested in joining our group, please check out our Flickr page to learn more.

If you like our Photo of the Day, check out MNN Lists and MNN Quizzes. (Photo: Shutterstock)

Keystone pipeline spills 210,000 gallons of oil in South Dakota

NASA captures new photos of runaway iceberg, and it's bigger than Delaware

Prehistoric shark with the head of a toothy snake found swimming off coast

'Zombie ants' lose their bodies, not their brains, to fungus

Bonobos like to help strangers — even when it comes to food

Whale sharks receive protections in migration hot spots

Newly discovered Sumatra orangutan species is already endangered

'Golden wonder' salamander seen for first time since '75

'Breathtakingly audacious' project aims to plant 73 million trees in Amazon

Carbon dioxide levels are reaching heights we haven't seen in 800,000 years

6 fascinating facts about coral reefs

Male killer whales need friends to survive

SPONSORED