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First ever Global Mammal Big Day Out

20 August 2025

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Daniel López-Velasco

This October marks the first Global Wildlife Fair in Delhi, an international event promoting wildlife conservation and ecotourism. As part of this, the very first Global Mammal Big Day will run on October 5. On this day, with the help of citizen science, the event aims to collectively record as many mammal species worldwide as possible. Joining in as easy as going outside, looking for wild mammals, and uploading any sightings to Observation.org.


Every contribution counts. Even one sighting helps ensure that a country is represented. Together, we hope to help grow this initiative into a truly global and leading event for wildlife enthusiasts and conservationists alike.


Chinese Takin (Budorcas taxicolor tibetana) by Joshua Bergmark

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