Black-mantled Tamarin 
Black-shanked Douc 
Black-striped capuchin 
Black-striped squirrel 
Black-tailed jackrabbit 
Black-tailed marmoset 
Black-tailed prairie dog 
Black-tufted marmoset 
Blackbuck 
Blesbok 
Blicks grass rat 
Blond capuchin 
Blue Duiker 
Blue monkey 
Blue whale 
Blue wildebeest 
Blue-eyed black lemur 
Blyths horseshoe bat 
Bobcat 
Bohor reedbuck 
Bolivian big-eared mouse 
Bolivian squirrel 
Bonnet Macaque 
Bontebok