She said she doubted hunting groups would follow through on threats to boycott the state.

NPR: US Arms Control Advocates Must Show They Like Guns

Hunting groups say lead bullets pose no risk to people or the environment.

CNN: Should hunters switch to 'green' bullets?

As well as acting as a catalyst for absentee owners to communicate with their muts, Robb has also had interest in the device from search-and-rescue and hunting groups.

CNN: Give a dog a cell phone

However, some Aboriginal groups kept them as pets or as hunting dogs.

BBC: NEWS | Science/Nature | Dingo's origins tracked by DNA

For a variety of reasons, including formerly unrestrained whale hunting, now there are three separate, reproductively isolated groups in the Pacific, Atlantic and Southern oceans.

CNN: waves

Humans co-operated with each other in hunting and fighting, but this co-operation occurred within groups of close relatives.

ECONOMIST: Economics focus

The groups likely know each other, from earlier gatherings or hunting parties.

NEWYORKER: Looking for Someone

He plans to keep 95% of Silver Bow undeveloped and is negotiating to donate conservation easements to groups such as the Rocky Mountain Elk Foundation, a pro-hunting group, and the Montana Land Reliance, a land trust.

FORBES: Home On The Ranch