Results
Click a row for more details
| Property | Organism | Value | Units | ID | Details |
|---|---|---|---|---|---|
| Median protein length of 15 archaeal species | Archaea | 247 (Table - link) | Amino acids | 106451 | Brocchieri L, Karlin... |
| Median protein lengths of 67 bacterial species | bacteria | 267 (Table - link) | Amino acids | 106452 | Brocchieri L, Karlin... |
| Estimated number of marine species | Biosphere | primary source [9] 2.2±0.18: primary source [12] 0.7 - 1.0 | million species | 113445 | Pimm SL et al., The ... |
| Standard screening threshold of sequence difference in cytochrome c oxidase I (COI) gene to define different species | Metazoa animals | 10 | × (times) average intraspecific difference | 113002 | Hebert PD, Stoeckle MY... |
| Number of cognate tRNA species | Bacteria Escherichia coli | 41 | tRNA species | 107343 | Solomovici J, Lesnik T... |
| Number of intestinal microbe species | Human Homo sapiens | 400 - 500 | microbial species | 117016 | Breitbart M et al., ... |
| Percent of arthropod species that are beetles | Unspecified | 40 | % | 103932 | May RM. How Many Species... |
| Number of species in which intraspecific (same-species) brood parasitism has been reported | Birds | ~200 | bird species | 117276 | Stevens M. Bird brood... |
| Average number of species per genera | Mammals | 4.4 | species/genus | 112642 | De Vos JM, Joppa LN,... |
| Number of species in microbiome | Human Homo sapiens | 500-1000 | unitless | 102387 | Sears CL. A dynamic ... |
| Volume of dinoflagellate species analyzed | Protists | 180 to 279,000 Table - link | μm^3 | 107971 | Susanne Menden-Deuer... |
| Number of chromosomes in species | Butterfly family lycaenid spp. | in genus Agrodiaetus 10 - 134 chromosomes: majority of lycaenid butterflies 23/24 | chromosomes | 116988 | Kandul NP, Lukhtanov VA... |
| Proportion of species that hybridize | Metazoa animals | 1 - 10 | % | 113468 | Yakimowski SB, Rieseberg... |
| Number of species of conifers | Plants | ~630 species: representing ~70 currently recognized genera | N/A | 113644 | Nystedt B et al., The... |
| Phosphatidylserine species of yeast subcellular membranes | Budding yeast Saccharomyces cerevisiae | Table - link | N/A | 108572 | Schneiter R et al., ... |
| Calculation of species diversity in non contaminated soil | Biosphere | 8.3e+6 | species/gram | 100552 | Jason Gans, Murray Wolinsky... |
| Number of species of parasitic worms and protozoa that humans are host to | Human Homo sapiens | parasitic worms ~300: protozoa >70 | species | 117278 | Cox FE. History of human... |
| Number of species of fish-, mollusk-, and worm-hunting cone snails of the Conus species | Predatory cone snail Conus spp. | >500 | Conus species | 115224 | Singer HM et al., Selective... |
| Number of described species of beetles (Coleoptera, the most species-rich group of organisms on Earth) | Insect | ~360,000 | described species | 113121 | Bouchard P et al., F... |
| Percent of animal species that live in the sea | Biosphere | 20 | % | 103928 | May RM. How Many Species... |