he 'Great Southern BioBlitz', or 'GSB' for short, is an international period of intense biological surveying in an attempt to record all the living species within several designated areas across the Southern Hemisphere in Spring.The purpose of this event is to highlight both the immense biodiversity spread across the Southern Hemisphere in the flourishing springtime, as well as to engage the public in science and nature learning using the citizen science platform iNaturalist. As we are international, in Spanish we are known as 'Gran Biobúsqueda del Sur', while in Portuguese we are known as 'Grande BioBlitz do Hemisfério Sul'.