Translation of "Conservationist" in Japanese

Conservationist and rhino advocate Clare Campbell says

自然保護活動家の クレア･キャンベルは―

The conservationist is on a dangerous mission tracking the nation’s spotted stealthy hunters, but his work comes at a cost.

自然保護活動家の彼は 仕事でヒョウを追跡しており 危険と隣り合わせです