The Australian Museum Eureka Prizes are the Oscars of Australian science. Catalyst brings you the winners of the major awards including the young recipient of the Sleek Geeks Prize for students and the illustrious People's Choice Award. In this year The International Year of Biodiversity, Catalyst focuses on the loss of species and the importance of not squandering the world's natural wealth. Prominent scientists in attendance voice their views on the potential gains that can be made from highly diverse ecosystems and what is at stake if we don't maintain them.