ENDANGERED SPECIES -- In case you've developed some optimism over man's ability to live within the means of Planet Earth, here's some recent insight on our impacts to wildlife.

Researchers warn that B.C.'s woodland caribou headed for extinction
The five herds of woodland caribou in northeast British Columbia are in danger of going extinct, according to researchers from the University of Northern B.C. and the province's Ecosystem Protection and Sustainability branch. The province's efforts have not help, including a controversial wolf cull the study discounted as addressing a secondary threat to the caribou. Habitat fragmentation caused by oil and gas work, logging and other industrial development are identified the primary driver of the species' demise.
--Toronto Globe and Mail

Another report on sage grouse tangles Wyoming management of species
The results of a study commissioned by the Pew Charitable Trusts of sage grouse in the American West found that in Wyoming's Powder River Basin the number of sage grouse fell from 6,804 in 2007 to 1,651 in 2013, a 76 percent decline that could lead the species in the basin to extinction within the next 30 years.
--Casper Star-Tribune

• Read:  "Greater Sage-Grouse Population Dynamics and Probability of Persistence"