| 1 (16) | Pennsylvania State University * | USA |  |
| 2 (24) | University of California, Los Angeles * | USA | |
| 3 (27) | National Aeronautics and Space Administration * | USA |  |
| 4 (44) | National Center for Atmospheric Research | USA | |
| 5 (58) | University of Washington * | USA | |
| 6 (59) | United States Department of Agriculture | USA | |
| 7 (65) | Arizona State University * | USA | |
| 8 (67) | Jet Propulsion Laboratory | USA | |
| 9 (72) | Smithsonian Institution * | USA | |
| 10 (86) | University of Texas, Austin | USA | |
| 11 (88) | Yale University * | USA | |
| 12 (97) | NASA Goddard Space Flight Center | USA | |
| 13 (101) | University of Georgia | USA | |
| 14 (102) | United States Geological Survey | USA | |
| 15 (108) | University of Maryland, College Park * | USA | |
| 16 (112) | Louisiana State University, Baton Rouge | USA | |
| 17 (119) | Smithsonian National Museum of Natural History | USA | |
| 18 (123) | California Institute of Technology * | USA | |
| 19 (124) | University of Utah * | USA | |
| 20 (125) | Stanford University * | USA | |
| 21 (127) | National Oceanic and Atmospheric Administration | USA | |
| 22 (133) | University of California, San Diego * | USA | |
| 23 (137) | University of Colorado, Boulder * | USA | |
| 24 (139) | University of Arizona * | USA | |
| 25 (141) | University of Kansas * | USA | |
| 26 (151) | University of Michigan, Ann Arbor * | USA | |
| 27 (163) | Columbia University * | USA | |
| 28 (165) | Massachusetts Institute of Technology * | USA | |
| 29 (168) | Harvard University * | USA | |
| 30 (173) | American Museum of Natural History | USA | |
| 31 (184) | Northwestern University, Evanston * | USA | |
| 32 (186) | Woods Hole Oceanographic Institution | USA |  |
| 33 (189) | University of Minnesota, Twin Cities * | USA | |
| 34 (190) | Brown University | USA | |
| 35 (192) | University of Florida * | USA | |
| 36 (193) | University of Wisconsin, Madison * | USA | |
| 37 (195) | University of California, Davis * | USA | |
| 38 (204) | University of Southern California * | USA | |
| 39 (212) | University of California, Berkeley * | USA | |
| 40 (214) | University of Massachusetts, Amherst | USA | |
| 41 (216) | Oregon State University | USA | |
| 42 (226) | University of California, Santa Cruz | USA | |
| 43 (228) | Texas A&M University, College Station * | USA | |
| 44 (230) | University of Illinois at Urbana-Champaign * | USA | |
| 45 (234) | University of Missouri, Columbia * | USA | |
| 46 (238) | University of California, Santa Barbara * | USA | |
| 47 (241) | Boston University * | USA | |
| 48 (245) | Virginia Polytechnic Institute and State University * | USA | |
| 49 (247) | Cornell University * | USA | |
| 50 (252) | Veterans Affairs Medical Centers * | USA |  |
| 51 (257) | Duke University * | USA | |
| 52 (260) | City University of New York * | USA | |
| 53 (266) | Washington State University, Pullman * | USA | |
| 54 (269) | Rutgers, The State University of New Jersey | USA | |
| 55 (272) | Purdue University | USA | |
| 56 (273) | University of Alaska, Fairbanks | USA | |
| 57 (274) | Florida Museum of Natural History | USA | |
| 58 (280) | Ohio State University, Columbus * | USA | |
| 59 (281) | Northern Arizona University | USA | |
| 60 (282) | New York University * | USA | |
| 61 (286) | Field Museum Natural History | USA | |
| 62 (290) | Johns Hopkins Medicine | USA | |
| 63 (295) | University of Connecticut, Storrs * | USA | |
| 64 (299) | University of Chicago * | USA | |
| 65 (320) | University of California, Riverside | USA | |
| 66 (324) | Colorado State University, Fort Collins * | USA | |
| 67 (326) | Harvard Medical School | USA | |
| 68 (350) | Johns Hopkins University * | USA | |
| 69 (358) | State University of New York, Stony Brook * | USA | |
| 70 (387) | Natural History Museum of los Angeles County | USA | |
| 71 (417) | University of Tennessee, Knoxville * | USA | |
| 72 (441) | University of Colorado, Denver * | USA | |
| 73 (451) | Case Western Reserve University | USA | |
| 74 (454) | University of Nebraska, Lincoln | USA | |
| 75 (495) | Loma Linda University * | USA | |
| 76 (503) | The College of Wooster | USA | |
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