1.The rhinos had been poached to a level of near extinction, but efforts to protect them have paid dividends.
poach 偷獵
The elephants are poached for their tusks.
為獲取象牙而偷獵大象 。
2.Black rhinos are still endangered and are at risk of extinction, but conservationists are hopeful their numbers will continue to grow.
extinction 滅絕
The mountain gorilla is on the verge of extinction .
居住在山區的大猩猩已瀕臨滅絕 。