Gray whale 
Gray wolf 
Gray woolly monkey 
Gray-handed night monkey 
Great fruit-eating bat 
Great Roundleaf Bat 
Greater bamboo lemur 
Greater big-footed mouse 
Greater Bilby 
Greater bulldog bat 
Greater dwarf lemur 
Greater Egyptian gerbil 
Greater Egyptian jerboa 
Greater Kudu 
Greater sac-winged bat 
Greater white-toothed shrew 
Grévys zebra 
Grey seal 
Grey-cheeked mangabey 
Grey-headed flying fox 
Grey-shanked douc langur 
Grivet 
Grizzled giant squirrel 
Grizzly bear