Behavioural ecologists are continually challenged with the problem of how to observe species in their natural environments without inadvertently disturbing them. One solution that has become increasingly popular is the use of remote cameras to monitor animal habitat use and behaviour. In this chapter we review the use of remote cameras in wildlife ecology and discuss remote camera study design. Two case-studies are presented: one focusing on grizzly bear habitat use in Canada and the other on snow leopard presence in Kazakhstan. Both studies generated important data for conservation management.