The Piliocolobus kirkii is a native monkey of Zanzibar (Zanzibar Red Colobus). This monkey is very voracious, usually eats leaves, other vegetal parts and unripe fruit, it can not digest the sugar of the ripe fruit. He often consumes vegetal coal in order to minimize the effects of the plants’ toxins that they eat. We can found it in some concrete areas in the island of Zanzíbar and this specie is in danger of extinction.