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Property Organism Value Units ID Details
Evolution of oxygenic photosynthesis by cyanobacteria Biosphere ~2.8 Billion years ago 114975 Kihara S, Hartzler DA...
Fraction of the 1.9 million known recent species that are recorded as extinct Biosphere 0.04 ((799 species)) % 117269 Régnier C et al., Mass...
Number of described species Invertebrates ~1.4 million species 117270 Régnier C et al., Mass...
Fraction of insect species per taxonomic order that have contracting ranges in the UK Biosphere 30 - 60 % of species per taxonomic order 117267 Ceballos G, Ehrlich PR...
Dimensions of venom gland of largest venom glands in all spiders Spider (family Ctenidae) genus Phoneutria ≤10.4 × 2.7 mm mm 116183 Mammola S, Michalik P...
Percent of microbial species that have been cultured prokaryote <=1 % 105600 Hugenholtz P. Exploring...
Chromosome number (2n) Gorilla Gorilla species 48 unitless 100371 De Grouchy J. Chromosome...
Calculation of species diversity in non contaminated soil Biosphere 8.3e+6 species/gram 100552 Jason Gans, Murray Wolinsky...
Length of rod-shaped bacterial cells that are too large for feeding by Daphnia magna Crustacean Daphnia magna >6 µm 115629 Young KD. The selective...
Chitin content of selected crustacean, insects, molluscan organs, and fungi Various Table - link % 115475 Tharanathan RN, Kittur...
Characteristic heart rate Fruit fly Drosophila melanogaster 235 beats per minute 101517 Amazing numbers in biology...
Characteristic heart rate Human Homo sapiens 60-90 beats per minute 101516 Amazing numbers in biology...
Calculation of species diversity in low metal contaminated soil Biosphere 6400 species/gram 100553 Jason Gans, Murray Wolinsky...
Calculation of species diversity in high metal contaminated soil Biosphere 790 species/gram 100554 Jason Gans, Murray Wolinsky...
Fraction of total organic matter that is chitinous structures Arthropods ≤85 % 115063 Tharanathan RN, Kittur...
Annual amount of chitin produced by crustaceans, mollusks, insects, and fungi Biosphere ~10^11 tonnes chitin/year 115064 Tharanathan RN, Kittur...
Dimensions Viruses Pandoravirus spp. Length 1: diameter 0.5 μm 109554 Philippe N et al., P...
Genome size of B. cereus strains Bacteria Bacillus cereus 5.5 to 6.3 Mb 116955 Cole S, Saint-Girons...
The giant fiber system-afferent and efferent connections Arthropods Table - link N/A 110603 Theodore Holmes Bullock...
Proportion of cell types that compose intralveolar septum Human Homo sapiens 30 capillary endothelial:8 type I:16 type II:36interstitial (fibroblasts and mast):10 macrophages % 103636 Junqueira, Carneiro, Kelley...