Sardine Run!

A vast school of sardines were swimming in formation during an annual migration. These photos were taken by Nadya Kulagina off the coast of Pescador Island in the Philippines.

“We were exploring the abundance of marine life — frog fish, moray eels, octopi, sea snakes when suddenly the sky grew dark as if overcast with unexpected clouds. I looked up and there were thousands, no millions of sardines moving as one organism. Their moving mass was blocking the sun turning day into night.”

Nadya, from Kazakhstan, described the sight of the shoal as “so mesmerising that everyone froze to watch the monster in action”.

 source : wired aperture