Six suspected tiger poachers in Bangladesh aren't going to make it to trial: Officials tell the BBC that the gang members were killed in a shootout after opening fire on police, and officers found the skins of three endangered Bengal tigers that had been killed just days earlier. The men were killed at their hideout in the Sundarbans, the world's largest mangrove forest, where there has been a huge fall in tiger numbers, the AP reports. A recent survey found only around 100 tigers where 440 tigers were recorded in 2004. Some of the drop is believed to be due to different survey methods, though authorities say rampant poaching is also to blame. (In Nepal, tiger numbers are rising amid a "zero-tolerance attitude to wildlife crime.)