September 24, 1998 – With 95 percent of its habitat destroyed, the San Bernardino kangaroo rat was emergency-listed under the Endangered Species Act.
March 4, 1999 – The Center and Christians Caring for Creation filed a lawsuit that eventually forced the U.S. Fish and Wildlife Service to designate 33,295 acres of critical habitat for the San Bernardino kangaroo rat.
March 18, 1999 – The Center filed a lawsuit to stop the Army Corps of Engineers from continuing construction of the Seven Oaks Dam on the Santa Ana River, leading the agency to consider impacts of the dam on endangered species like the San Bernardino kangaroo rat.
April 23, 2002 – The Fish and Wildlife Service designated 33,295 acres of California's San Bernardino and Riverside counties as critical habitat for the kangaroo rat.
March 6, 2003 – The Center and the San Bernardino Valley Audubon Society won permanent protection for 1,200 acres of habitat critical to the San Bernardino kangaroo rat and the coastal California gnatcatcher in a settlement with the Lytle Creek development project in San Bernardino County.
December 20, 2007 – The Center filed a notice of intent to sue the Department of Energy for failing to consider 95 endangered species, including the San Bernardino kangaroo rat, in its fast-track designation of the 45-million-acre Southwest National Interest Electric Transmission Corridor.
October 17, 2008 – The Service finalized a dramatic reduction in the kangaroo rat's critical habitat, slashing it by a shocking 76 percent to include just 7,779 acres.
November 12, 2008 – The Center filed a notice of intent to sue the Service over its dramatic and illegal reduction of the kangaroo rat's habitat.
January 14, 2009 – The Center sued the Service to force an adequate critical habitat designation for the kangaroo rat.
November 17, 2010 – The Center, Endangered Habitats League and the San Bernardino Audubon Society notified the U.S. Army Corps of Engineers and Fish and Wildlife Service of our intent to sue over approval of a massive water-development project in one of the last remaining habitats for the San Bernardino kangaroo rat.
July 25, 2016 – The Center for Biological Diversity and Endangered Habitats League announced our intent to sue the U.S. Army Corps of Engineers for its failure to assess harm to Santa Ana suckers and San Bernardino kangaroo rats regarding the effects of management of Santa Ana River flood-control projects, including operation of the Seven Oaks Dam.