Happywhale is a global citizen science program using a web-based marine mammal photo ID crowd-sourcing platform. Some data has been contributed under INTAROS WP4. Happywhale engages citizen scientists to identify individual marine mammals, for fun and for science. Happywhale tracks individual whales throughout our world's oceans. Per november 2020 310673 photos has been submitted and 47622 Individual marine mammals have been identified, mostly humpback whales.