The Congressional Research Service provides detailed reports to Congress. These reports can be difficult to obtain, as they are created for Congress and not the general public. Three sources for these reports are: Congress.gov, CRSReports.com and the University of North Texas Digital Library. Some of the relevant CRS reports include:
- Active Military Sonar and Marine Mammals: Chronology with References
- Active Military Sonar and Marine Mammals: Events and References
- African Elephant Issues: CITES and CAMPFIRE
- The Arctic National Wildlife Refuge
- Biological Diversity Treaty: Fact Sheet
- Brief Summaries of Federal Animal Protection Statutes
- The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES): Background and Issues
- Designation of Critical Habitat Under the Endangered Species Act (ESA)
- Does the Endangered Species Act (ESA) Listing Provide More Protection of Polar Bear?: A Look at the Special Rules
- Dolphin Protection and Tuna Seining
- The Endangered Species Act: A Primer
- The Endangered Species Act: Consideration of Economic Factors
- Endangered Species: Continuing Controversy
- Endangered Species: Difficult Choices
- Endangered Species Act and Legal Issues Regarding Columbia Basin Salmon and Steelhead
- The Endangered Species Act (ESA), Migratory Bird Treaty Act (MBTA) and Department of Defense (DOD) Readiness Activities: Background and Current Law
- The Endangered Species Act and Private Property
- The Endangered Species Act and "Sound Science"
- The Endangered Species Act (ESA) in the 111th Congress: Conflicting Values and Difficult Choices
- Endangered Species List Revisions: A Summary of Delisting and Downlisting
- Fishery, Aquaculture, and Marine Mammal Legislation in the 109th Congress
- Gray Wolves Under the Endangered Species Act: Distinct Population Segments and Experimental Populations
- Honey Bee Colony Collapse Disorder
- International Illegal Trade in Wildlife: Threats and U.S. Policy
- The Lacey Act: Protecting the Environment by Restricting Trade
- Marine Mammal Protection Act Amendments of 1994
- Marine Mammal Protection Act: Reauthorization Issues
- Mexican Spotted Owls: Federal Protection
- Mexican Wolf: Federal Protection
- Multinational Species Conservation Fund
- National Wildlife Refuges: Places to Hunt
- The Northern Goshawk: Future Endangered Species?
- The Northern Right Whale
- Norwegian Commercial Whaling: Issues for Congress
- Pacific Salmon and Andromous Trout: Under the Endangered Species Act
- Polar Bears: Proposed Listing Under the Endangered Species Act
- Proposed Changes to Regulations Governing Consultation Under the Endangered Species Act (ESA)
- The Steel Jaw Leghold Trap: Issues and Concerns
- Wilderness: Overview and Statistics
- Wild Horse and Burro Issues
- Wildlife Restoration Projects Fund
