Nature Park of Alvão the moist lands along the riverfront. The Olo River is rich in trout and is populated by the Eurasian otter ("Lutra lutra"). Throughout the region, bird populations are diverse and include nesting pairs of Golden eagles. Mammal populations are marked by the presence of Wild boar ("Sus scrofa"), Roe deer ("Capreolus capreolus"), European badger ("Meles meles"), Granada hare ("Lepus granatensis") and European rabbit ("Oryctolagus cuniculus"). Among reptiles in the area are the Iberian emerald lizard ("Lacerta schreiberi") and the Latastei viper ("Vipera latastei"). No less important to the region is the traditional architecture of the nature park region, especially in
Premiership of Meles Zenawi devolved to them in ways that they understand, and they understand ethnicity... Other approaches to development had been hegemonic and exploitative and had led to internecine strife and civil war." Meles claimed that there are two basic views about ethnic federalism: "if you think it is a threat, it will be; if you think it a benefit, then it will be." Making this statement, he concluded that "ethnicity will become less an issue as the economy grows and Ethiopia's process of assimilation does its job." Meles Zenawi's government introduced a diverse but controversial policy of decentralization of the language system