In the past year, seven new species (all mammals) were added to Ensembl including one new high coverage genome Pongo pygmaeus abelii (orangutan) and six new low coverage genomes [Pteropus vampyrus (megabat), Tursiops truncates (dolphin), Tarsius syrichta (philippine tarsier), Lama pacos (alpaca), Dipodomys ordii (kangaroo rat) and Procavia capensis (rock hyrax)]. Ensembl now supports 19 low coverage 2× genome sequences, the majority generated as part of the Mamalian Genome Project (http://www.broad.mit.edu/node/296). So far only one of the original 2× genomes, Cavia porcellus (Guinea Pig), has been upgraded to high coverage (6.8×). Together with the other 13 high coverage mammalian genomes, Ensembl contains a total of 32 mammals, making it an extensive resource for mammalian comparative genomics. In total Ensembl now supports 48 genomes, 41 of which are vertebrates.