| [pasteurella] aerogenes | Yes | species | bacteria | bacteria | species | 749 | click here |
| aaptos aaptos | Yes | species | eukaryota | invertebrates | species | 253165 | click here |
| aethia cristatella | Yes | species | eukaryota | vertebrates | species | 28685 | click here |
| aix sponsa | Yes | species | eukaryota | vertebrates | species | 8833 | click here |
| alces alces | Yes | species | eukaryota | mammals | species | 9852 | click here |
| alces americanus | Yes | species | eukaryota | mammals | species | 999462 | click here |
| amazona aestiva | Yes | species | eukaryota | vertebrates | species | 12930 | click here |
| amazona auropalliata | Yes | species | eukaryota | vertebrates | species | 152277 | click here |
| amazona ochrocephala | Yes | species | eukaryota | vertebrates | species | 151761 | click here |
| amazona ochrocephala auropalliata | Yes | subspecies | eukaryota | vertebrates | subspecies | 151762 | click here |
| amazona oratrix | Yes | species | eukaryota | vertebrates | species | 152276 | click here |
| ammotragus lervia | Yes | species | eukaryota | mammals | species | 9899 | click here |
| anas | Yes | | | vertebrates | genus | 8835 | click here |
| anas acuta | Yes | species | eukaryota | vertebrates | species | 28680 | click here |
| anas clypeata | Yes | species | eukaryota | vertebrates | species | 75838 | click here |
| anas formosa | Yes | species | eukaryota | vertebrates | species | 56278 | click here |
| anas platyrhynchos | Yes | species | eukaryota | vertebrates | species | 8839 | click here |
| anas platyrhynchos platyrhynchos | Yes | subspecies | eukaryota | vertebrates | subspecies | 8840 | click here |
| anatidae | Yes | | | vertebrates | family | 8830 | click here |
| anodorhynchus hyacinthinus | Yes | species | eukaryota | vertebrates | species | 51900 | click here |
| anser | Yes | | | vertebrates | genus | 8842 | click here |
| anser albifrons | Yes | species | eukaryota | vertebrates | species | 50365 | click here |
| anser albifrons frontalis | Yes | subspecies | eukaryota | vertebrates | subspecies | 184919 | click here |
| anser anser | Yes | species | eukaryota | vertebrates | species | 8843 | click here |
| anser anser domesticus | Yes | subspecies | eukaryota | vertebrates | subspecies | 8848 | click here |
| anser caerulescens | Yes | species | eukaryota | vertebrates | species | 8849 | click here |
| anser caerulescens caerulescens | Yes | subspecies | eukaryota | vertebrates | subspecies | 70340 | click here |
| anser cygnoides | Yes | species | eukaryota | vertebrates | species | 8845 | click here |
| anser rossii | Yes | species | eukaryota | vertebrates | species | 56281 | click here |
| anser sp. | Yes | no rank | eukaryota | vertebrates | species | 8847 | click here |
| antilocapra americana | Yes | species | eukaryota | mammals | species | 9891 | click here |
| aonyx cinerea | Yes | species | eukaryota | mammals | species | 452597 | click here |
| apis mellifera | Yes | species | eukaryota | invertebrates | species | 7460 | click here |
| apodemus | Yes | | | rodents | genus | 10128 | click here |
| apodemus sylvaticus | Yes | species | eukaryota | rodents | species | 10129 | click here |
| ara ararauna | Yes | species | eukaryota | vertebrates | species | 9226 | click here |
| arvicola amphibius | Yes | species | | | species | 1047088 | click here |
| asio flammeus | Yes | species | eukaryota | vertebrates | species | 56267 | click here |
| atelerix albiventris | Yes | species | eukaryota | mammals | species | 9368 | click here |
| aves | Yes | | | vertebrates | class | 8782 | click here |
| axis axis | Yes | species | eukaryota | mammals | species | 30531 | click here |
| bactrocera dorsalis | Yes | species | eukaryota | invertebrates | species | 27457 | click here |
| bison | Yes | | | mammals | genus | 9900 | click here |
| bison bison | Yes | species | eukaryota | mammals | species | 9901 | click here |
| bison bison bison | Yes | subspecies | | | subspecies | 43346 | click here |
| bombus | Yes | | | invertebrates | genus | 28641 | click here |
| bombus hypnorum | Yes | species | eukaryota | invertebrates | species | 30191 | click here |
| bos frontalis | Yes | species | eukaryota | mammals | species | 30520 | click here |
| bos gaurus | Yes | species | eukaryota | mammals | species | 9904 | click here |
| bos grunniens | Yes | species | eukaryota | mammals | species | 30521 | click here |
| bos indicus | Yes | species | eukaryota | mammals | species | 9915 | click here |
| bos taurus | Yes | species | eukaryota | mammals | species | 9913 | click here |
| boselaphus tragocamelus | Yes | species | eukaryota | mammals | species | 9917 | click here |
| bovidae | Yes | | | mammals | family | 9895 | click here |
| bovinae | Yes | | | mammals | subfamily | 27592 | click here |
| branta canadensis | Yes | species | eukaryota | vertebrates | species | 8853 | click here |
| branta canadensis maxima | Yes | subspecies | eukaryota | vertebrates | subspecies | 184599 | click here |
| bubalus bubalis | Yes | species | eukaryota | mammals | species | 89462 | click here |
| bubalus carabanensis | Yes | species | eukaryota | mammals | species | 346063 | click here |
| bucephala albeola | Yes | species | eukaryota | vertebrates | species | 279934 | click here |
| bucephala clangula | Yes | species | eukaryota | vertebrates | species | 107022 | click here |
| buteo jamaicensis | Yes | species | eukaryota | vertebrates | species | 56263 | click here |
| buteo lagopus | Yes | species | eukaryota | vertebrates | species | 115229 | click here |
| cairina moschata | Yes | species | eukaryota | vertebrates | species | 8855 | click here |
| callithrix jacchus | Yes | species | eukaryota | primates | species | 9483 | click here |
| callorhinus ursinus | Yes | species | eukaryota | mammals | species | 34884 | click here |
| camelus | Yes | | | mammals | genus | 9836 | click here |
| camelus dromedarius | Yes | species | eukaryota | mammals | species | 9838 | click here |
| canidae | Yes | | | mammals | family | 9608 | click here |
| canis | Yes | | | mammals | genus | 9611 | click here |
| canis lupus familiaris | Yes | subspecies | eukaryota | mammals | subspecies | 9615 | click here |
| capra aegagrus | Yes | species | eukaryota | mammals | species | 9923 | click here |
| capra hircus | Yes | species | eukaryota | mammals | species | 9925 | click here |
| capra ibex | Yes | species | eukaryota | mammals | species | 72542 | click here |
| capra pyrenaica | Yes | species | eukaryota | mammals | species | 80419 | click here |
| capra pyrenaica hispanica | Yes | subspecies | eukaryota | mammals | subspecies | 478592 | click here |
| capreolus capreolus | Yes | species | eukaryota | mammals | species | 9858 | click here |
| caprinae | Yes | | | mammals | subfamily | 9963 | click here |
| carduelis pinus | Yes | species | eukaryota | vertebrates | species | 54771 | click here |
| cavia porcellus | Yes | species | eukaryota | rodents | species | 10141 | click here |
| cebus capucinus | Yes | species | eukaryota | primates | species | 9516 | click here |
| centrocercus urophasianus | Yes | species | eukaryota | vertebrates | species | 9002 | click here |
| cerorhinca monocerata | Yes | species | eukaryota | vertebrates | species | 61263 | click here |
| cervidae | Yes | | | mammals | family | 9850 | click here |
| cervus canadensis | Yes | species | | | species | 1574408 | click here |
| cervus canadensis nelsoni | Yes | subspecies | eukaryota | mammals | subspecies | 9864 | click here |
| cervus elaphus | Yes | species | eukaryota | mammals | species | 9860 | click here |
| chelodina longicollis | Yes | species | eukaryota | vertebrates | species | 44491 | click here |
| chelydra serpentina | Yes | species | eukaryota | vertebrates | species | 8475 | click here |
| chiroptera | Yes | | | mammals | order | 9397 | click here |
| chlorocebus aethiops | Yes | species | eukaryota | primates | species | 9534 | click here |
| chlorocebus sabaeus | Yes | species | eukaryota | primates | species | 60711 | click here |
| chroicocephalus ridibundus | Yes | species | | | species | 1192867 | click here |
| clangula hyemalis | Yes | species | eukaryota | vertebrates | species | 197941 | click here |
| colinus virginianus | Yes | species | eukaryota | vertebrates | species | 9014 | click here |
| columba | Yes | | | vertebrates | genus | 8931 | click here |
| columba livia | Yes | species | eukaryota | vertebrates | species | 8932 | click here |
| columba sp. | Yes | no rank | eukaryota | vertebrates | species | 8933 | click here |
| columbidae | Yes | | | vertebrates | family | 8930 | click here |
| connochaetes taurinus | Yes | species | eukaryota | mammals | species | 9927 | click here |