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Property Organism Value Units ID Details
Fraction of cerebellum out of brain by volume [largest volume fraction of the cerebellum of all mammals] African Elephant Loxodonta africana ~30 % 115168 Haug H. Brain sizes, surfaces...
Fraction of daily energy budget allocated to brain Mammals adult human ~20-25: other primates 8-10: other (non-primate) mammals 3-5 % 113754 Leonard WR, Robertson ML...
Estimates of the biosphere's whale biomass Mammals 5 to 15 Table - link Mt C 109628 Vaclav Smil, The Earth's...
Volume of sperm cell Cow Bos Taurus 25μm^3 with glycerol: 26μm^3 without glycerol μm^3 106638 Berndtson WE, Foote RH....
Sperm mutation properties Human Homo sapiens Table - link N/A 108039 Jianbin Wang, H. Christina...
"Efficiency" of sperm movement Cow Bos Taurus ~22 % 110794 Rikmenspoel, Measurements...
Isosmotic volume of sperm Human Homo sapiens 28.5 (±0.3 Table - link) μm^3 109891 Gilmore JA, McGann LE...
Dry mass of sperm Cow Bos Taurus 1.3E-11 Grams 106854 Bahr GF, Zeitler E. Study...
Surface area of sperm cell membrane Mouse Mus musculus ~250 µm^2 110721 Kirichok Y, Navarro B...
Number of sperm ejaculated by a bull Cow Bos Taurus 5e9 - 15e9 sperms/ejaculate 110114 Parker GA. Why are there...
Dimensions of sperm cell modelled as cylinder Human Homo sapiens 40.2 μm length: 0.42 μm radius μm 106851 Devireddy RV, Swanlund DJ...
Selected values of sperm cell volume Human Homo sapiens 15.4 - 37.5 Table - link μm^3 109892 Kleinhans FW, Travis VS...
Measurements of bull sperm structures from literature Cow Bos Taurus Table - link N/A 106855 Bahr GF, Zeitler E. Study...
Mutation rate in individual whose sperm was sequenced Human Homo sapiens 2e-8 to 4e-8 Mutations/site/generation 108040 Jianbin Wang, H. Christina...
Estimated packing ratio for eukaryotic sperm cell Unspecified 0.02 unitless 101855 "Physical Biology of...
Divergence times of ecotypes Killer whale Orcinus orca ~150,000 - 700,000 years ago 112711 Morin PA. et al., Complete...
Flexural rigidity of sperm and microtubules Various Table - link N/A 101507 Jonathon Howard, Mechanics...
The speed of human sperm straight line velocity (VSL) Human Homo sapiens 0 - 35 µm/sec 114281 Van den Bergh, M., Emiliani...
Cellular location and protein families distributions of the proteins identified in isolated sperm nuclei Human Homo sapiens Figure link - link N/A 107218 de Mateo S, Castillo J...
Number of mitotic divisions from stem cell to sperm Mediterranean fruit fly Ceratitis capitata 6 unitless 105587 Shahjahan RM, Rendon PA...