It's worth noting that coltan mining has caused significant destruction of gorilla habitats in the DRC. Gorilla habitats have been reduced as forests are cleared to make way for mining operations, leaving a population of only about 6,800 Grauer's gorillas — the world's largest primate. Mountain gorilla habitats have also been impacted by the illegal coltan-mining and smuggling industry. The ongoing conflict and issues around mining and sourcing coltan have prompted calls to the Congolese government and local leaders to strengthen conflict minerals laws.