The work can be harrowing, of course. Officials stunned after trail camera captures elusive predator in historic first: 'No .

The single tiger, known as Walker II, is thought to have been killed by poachers after not appearing in camera trap footage ...

Park rangers set up the trail cameras initially to catch a glimpse ... The tree-dwelling clouded leopard is one of eight tiger species found in Kang Krachan National Park, officials said.

A lone tiger, often spotted on camera traps in the protected Gautala Autramghat Wildlife Sanctuary in Maharashtra state India, has been thought to have been killed by poachers after disappearing ...