City Nature Challenge: San Diego

From the San Diego Natural History Museum:

Help San Diego Win

City Nature Challenge, which takes place from April 27-30, 2018, is a worldwide competition to see which city can make the most observations of their local plants and animals over a 4-day period. And San Diego composes part of one of only 35 biodiversity hotspots in the world, so we should have this in the bag!

The global event is organized by Natural History Museum of Los Angeles and California Academy of Sciences, and The Nat is spearheading our local effort. The goal is to document as many species as possible via your smartphone. The event begins Friday, April 27 at 12 AM PT and ends Monday, April 30 at 11:59 PM PT.

Over 60 cities will be competing to see who can make the most observations of nature, find the most species, and engage the most people in the worldwide 2018 City Nature Challenge.  More information at or here.

Challenge Day 1 | Friday, April 27

Challenge Day 2 | Saturday, April 28

Challenge Day 3 | Sunday, April 29

Challenge Day 4 | Monday, April 30

  • iNaturalist with Nat staff | The Nat | Monday, April 30, 11 AM – 3 PM
The Museum will announce the tallied results on Friday, May 4.

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