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Property Organism Value Units ID Details
Number of animals in which the ability to walk on water has independently evolved Metazoa animals >1200 species 116189 Mammola S, Michalik P...
Diameter of myelinated and unmyelinated axons in central nervous system (CNS) (but size spectra of myelinated and unmyelinated axons overlap considerably) Metazoa animals myelinated 0.2: unmyelinated ≤0.8 µm 114487 Hildebrand C, Remahl S...
List of non-human animals with publications on their genome projects as of 2012 Metazoa animals Table - link Mb 112712 Luting Song & Wen Wang...
Fraction of all transcription factors that are homeodomain (HD) proteins Metazoa animals ~15% - 30 % of all transcription factors 116967 Bürglin TR, Affolter...
Composition of myelin Metazoa animals lipids 70 - 80: protein 20 - 30 % 114494 Hildebrand C, Remahl S...
Number of microRNA genes conserved across bilaterian animals (value in article is 39, see comments section) Metazoa animals ~ (~41) genes 114542 Fromm et al. A Uniform...
Blood group-active proteins–abundance and function where known Metazoa animals Table - link 10^3 copies/cell 106728 Anstee DJ. The functional...
Weight of epithelial cell Metazoa animals ~1 ng 115553 Tomasetti C, Li L, Vogelstein...
Number of bacterial species-level and genus-level operational taxonomic units (OTUs) in human and worm & phylotype number in termite Metazoa animals species-level OTUs in human ~1,000: genus-level OTUs in worm 832: phylotypes in termite hindgut 216 OTUs/phylotypes per individual 113942 Shapira M. Gut Microbiotas...
Numbers of nerve cell nuclei in main ganglia of three species of rotifers Metazoa animals Table - link nerve cell nuclei 110600 Theodore Holmes Bullock...
Swimming efficiency Metazoa animals rainbow trout ~10% squid ~5% % 110789 Katsu-Kimura Y, Nakaya F...
pH of neurons and nerve fibers Metazoa animals Table - link unitless 110767 Roos A, Boron WF (1981)...
g-ratio (inner diameter of myelin sheath/outer diameter) Metazoa animals ~0.6 unitless 110610 Harvey A. Swadlow and...
Velocity of conduction of nerve impulses in selected cases Metazoa animals Table - link N/A 110597 Theodore Holmes Bullock...
Collagen diffusivity (Dcol) Metazoa animals ≈7.3 µm^2/sec^2 112907 Rutenberg AD, Brown AI...
Cost of amino-acid export from lysosome back to cytoplasm Metazoa animals ~1 ~P (ATP)/3-4 amino acids 112156 Michael Lynch and Georgi...
Annelid giant through-conduction systems Metazoa animals Table - link N/A 110601 Theodore Holmes Bullock...
Speed of fastest animal (peregrine falcon, Falco peregrinus in stoop) Metazoa animals >320 km/hour 112867 Ponitz B, Schmitz A,...
Tether forces and calculated membrane tension values for various cell types under different conditions Metazoa animals Table - link N/A 112509 Sens P, Plastino J. Membrane...
Fraction of water (~60% of total body weight) in different body compartments Metazoa animals extracellular ~20%: (plasma ~5%, interstitial fluid ~15%) intracellular ~40% % of body mass 110743 OS. Andersen, "Cellular...