Nearly 300 endangered northern leopard frogs returned to the wild at the Columbia National Wildlife Refuge in Grant County at the end of August.

7 ‘Extinct’ Species That Eventually Reappeared ... Zanzibar Leopard A preserved Zanzibar leopard, which may have been caught on camera a few years ago. Image: Wikimedia Commons .

Formosan Clouded Leopard July 22nd, 2018 42 min Forrest tracks clues and eyewitness accounts suggesting that the Formosan clouded leopard is still alive after being declared extinct.

The frogs have been endangered in Washington since 1999. Nearly 300 endangered northern leopard frogs hopped back into the wild at the Columbia National Wildlife Refuge in August. Skip Navigation ...