Sh. 70: the Red-tailed Tropicbird, a marine bird ranging widely across the Indian Ocean
Sh. 500: the Red Colobus Monkey is unique to the islands of Zanzibar, where it survives in forest fragments and is a flagship species for conservation efforts
K100, K1850 on K20: two values (including an overprint) from a former definitive series showing native sunbirds, which are nectar-feeders only found in Africa. Pictured here are the Scarlet-chested and Bronze Sunbirds.
Sh. 10 and Sh. 25: this series shows two of Tanzania's magnificent parks: zebras and a golden sunbird in Ngorongoro Crater, and elephants and kudu in Ruaha National Park, Tanzania's largest protected area, covering nearly 22,000 km sq in the south-central region of the country.