A district court held that FWS' decision to withdraw its proposed listing of the "bi-state sage grouse" as threatened under the ESA was arbitrary and capricious. FWS recognized that…

The Eighth Circuit affirmed a lower court decision that a zoo violated the ESA due to its mistreatment of endangered lemurs and tigers. On appeal, the zoo argued that the animal rights activists…

The Ninth Circuit upheld the U.S. Army Corps of Engineers' issuance of a CWA §404 permit authorizing the discharge of materials into the Santa Clara River as part of a large-scale residential…

A district court held that FWS must comply with a FOIA request for information from its Law Enforcement Management Information System (LEMIS), which, among other things, the agency uses to track…

The Ninth Circuit upheld FWS' decision to end its 1987 sea otter translocation program. FWS created an experimental reserve population of southern sea otters some distance from the main…

A district court upheld the U.S. Department of Homeland Security's (DHS') decision to waive the legal requirements of NEPA, ESA, and CZMA for two border wall construction projects in San…

The Ninth Circuit held that NOAA did not go beyond its authority when it took climate change into account when considering the ESA status of the Arctic ringed seal. In 2012, NOAA listed the Arctic…

A district court held that FWS applied an improper standard when it concluded there was not adequate scientific evidence to warrant listing the Yellowstone bison population under the ESA.…

The Eleventh Circuit held that the Miami Seaquarium’s treatment of a captive orca named Lolita doesn’t seriously threaten her life. Animal activists sued the aquarium, alleging it is perpetrating…

The Ninth Circuit held that FWS did not violate the Migratory Bird Treaty Act (MBTA) when it authorized the taking of the barred owl to help the recovery of the spotted owl. The spotted owl was…