Giant Anteater ~ Oso Hormiguero (Myrmecophaga tridactyla) Solitary, nocturnal, grasslands, deciduous and rainforests. Eats mainly ants, termites, sometimes up to 30,000 insects in a day. One of few mammals without any teeth. Length up to 7 ft; 4 of head & torso with a 3-ft tail, 65-140 lbs. Grey or brown, but all have a diagonal black and white shoulder stripe. A very keen sense of smell, but may have poor sight & hearing. Tongue can reach 2 ft in length, flicking 150 times per minute.