Observations of the courtship behaviour and mating of two couples of giant anteaters (Myrmecophaga tridactyla) were carried out during the months of June and September 2004; July 2005; November 2006; and March 2007, at the Bioparque Los Ocarros, Colombia. The enclosure of the animals is semicircular, with an approximate area of 100 m², and permanently equipped with live trees, trunks, anthills, fresh water, troughs and refuges for resting. Data were collected by means of Ad Libitum sampling with Continuous and Multifocal Animal Registration. A total of 143 registrations corresponding to 39 behaviours were obtained. A basic ethogram and a descriptive diagram with coded behaviours were developed.