Members of the indigenous group Kayaquira participate during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. Hundreds of ethnic groups from Oruro province participated in the carnival. (Photo by David Mercado/Reuters)

An indigenous woman holds a mobile phone during the Anata Andina (Andean carnival) parade in Oruro February 12, 2015. (Photo by David Mercado/Reuters)

An indigenous man plays the “Tokoro”, a native instrument, during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

Members of the indigenous group of San Pedro de Condo participate during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

A woman prepares wheat fritters for sale during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

An indigenous woman attends the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

Indigenous musicians from Curahuara de Carangas play their “Tarkas”, a native instrument, during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

An indigenous woman from Caracollo participates in the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

An indigenous woman participates during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

A man applauds to members of the San Pedro de Cota group during the Anata Andina (Andean carnival) in Oruro February 12, 2015. (Photo by David Mercado/Reuters)

Indigenous musicians from Curahuara de Carangas play their “Tarkas”, a native instrument, during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

Bolivia's President Evo Morales (C) dances during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

Bolivia's President Evo Morales (C) is invited to dance during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

Indigenous people dance during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

An indigenous man plays a “Tarka”, a native instrument, during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

Indigenous people dance during the Anata Andina (Andean carnival) parade in Oruro, February 12, 2015. (Photo by David Mercado/Reuters)

Musicians perform at the Itos (Nueva San Jose) silver and base metals mine during a celebration in the outskirts of Oruro, February 13, 2015. Every year, on the Friday before the Andean carnival celebrations, miners sacrifice animals in the mine to bless it, pray for their well-being and to give thanks to Mother Earth. (Photo by David Mercado/Reuters)

A mine worker attends a celebration at the Itos (Nueva San Jose) silver and base metals mine during a celebration in the outskirts of Oruro, February 13, 2015. (Photo by David Mercado/Reuters)

Independent mine workers hold bottles of beer during a celebration at the Itos (Nueva San Jose) silver and base metals mine during a celebration in the outskirts of Oruro, February 13, 2015. (Photo by David Mercado/Reuters)

Independent mine workers carry offerings into the mine during a celebration at the Itos (Nueva San Jose) silver and base metals mine during a celebration in the outskirts of Oruro, February 13, 2015. (Photo by David Mercado/Reuters)

Independent mine workers sacrifice Llamas as part of celebrations at the Itos (Nueva San Jose) silver and base metals mine during a celebration in the outskirts of Oruro, February 13, 2015. (Photo by David Mercado/Reuters)

An independent miner eats the heart of a llama, killed as an offering for a ritual, at the Itos silver and base metals mine in the outskirts of Oruro, February 13, 2015. (Photo by David Mercado/Reuters)

Independent miners carry a llama's heart to their work site during a ritual celebration at the Itos silver and base metals mine in the outskirts of Oruro, February 13, 2015. (Photo by David Mercado/Reuters)

Bolivian independent miners and their relatives gather for a celebration inside the Itos silver and base metals mine in the outskirts of Oruro February 13, 2015. (Photo by David Mercado/Reuters)

Bolivian independent miners toast during a celebration inside the Itos silver and base metals mine in the outskirts of Oruro February 13, 2015. (Photo by David Mercado/Reuters)

Bolivian independent miners toast during a celebration inside the Itos silver and base metals mine in the outskirts of Oruro February 13, 2015. (Photo by David Mercado/Reuters)

Bolivian independent miners conduct a ritual during a celebration at the Itos silver and base metals mine in the outskirts of Oruro, February 13, 2015. (Photo by David Mercado/Reuters)

Llamas with their eyes covered as part of a ritual are seen during a celebration at the Itos silver and base metals mine in the outskirts of Oruro February 13, 2015. (Photo by David Mercado/Reuters)

Bolivia's President Evo Morales dances during the Carnival parade in Oruro, February 14, 2015. Thousands of dancers and tourists attend the carnival celebrations in Oruro, south of La Paz. (Photo by David Mercado/Reuters)

Members of the “Diablada” group perform during the Carnival parade in Oruro, February 14, 2015. (Photo by David Mercado/Reuters)

Members of “Caporales” group dance during the Carnival parade in Oruro February 14, 2015. (Photo by David Mercado/Reuters)

A member of the “Morenada Los Cocanis” group dances during the Carnival parade in Oruro February 14, 2015. (Photo by David Mercado/Reuters)