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Property Organism Value Units ID Details
Number of times viviparity evolved independently within squamate reptiles (lizards & snakes) Reptiles ~100 times 113182 Farmer CG. Parental Care:...
Duration of synthesis of only alphakeratin of skin-rapid cell turnover (the renewal phase) in Sphenodon & all lizards & snakes so far studied Reptiles 14 days 113170 Alibardi L. Adaptation...
Divergence date of mammals from reptiles vertebrates ~300 Mya 108645 Brian Cotterell, Fracture...
Growth in birds, amphibians, reptiles and fishes: weight at various ages Various Table - link N/A 102205 Altman, P.L., and Dittmer...
Leukocytes and thrombocytes size in the peripheral bloods of various amphibians and reptiles Vertebrates Table - link µm 117075 Arikan, Hüseyin, Çiçek...
Fraction of land vertebrates including reptiles, birds, and amphibians that are experiencing a decline and losses in local population Biosphere ~30 % 117263 The Lancet Planetary...
Time when fundamental step toward the adaptation of the integument to the terrestrial environment was made by basal amniotes vertebrates ~340 Mya 113167 Alibardi L. Adaptation...
Size of lamellar bodies in mammals and other amniotes vertebrates 0.1-0.2 µm 113168 Alibardi L. Adaptation...
Percentage of decreasing species classified by IUCN (International Union for Conservation of Nature) as "endangered" or "low concern" in terrestrial vertebrates Vertebrates Table - link % 117266 Ceballos G, Ehrlich PR...
Number of animals in which the ability to walk on water has independently evolved Metazoa animals >1200 species 116189 Mammola S, Michalik P...
Fraction of life destroyed at the end-Cretaceous boundary Biosphere 75 % 111606 Landenmark HK, Forgan DH...
Size of lamellar bodies in fish and amphibian vertebrates 0.2-0.3 µm 113169 Alibardi L. Adaptation...
The erythrocyte sizes in various vertebrates Vertebrates Table - link µm 117074 Arikan, Hüseyin, Çiçek...
Prevalence of Escherichia coli Vertebrates humans >90%: wild mammals 56%: birds 23%: reptiles 10 % 116911 Tenaillon O, Skurnik D...
Presence of lamellar branching in corneal stroma compared to that of fish Vertebrates in amphibians 2 times that of fish: in birds >10 times that of fish times of lamellar branching in fish 117198 Koudouna E et al., Evolution...
Date of divergence of plants from green algae Eukaryotes 475 to 400 Mya 107090 Gould SB, Waller RF,...
Chemical composition of various animal cells Various Table - link N/A 102206 Altman, P.L., and Dittmer...
Developmental stages including approximate age and size Rat Rattus norvegicus Table - link N/A 102197 Altman, P.L., and Dittmer...
Developmental stages including approximate age and size Pig Sus species Table - link N/A 102199 Altman, P.L., and Dittmer...
Developmental stages including approximate age and size Chicken Gallus gallus Table - link N/A 102200 Altman, P.L., and Dittmer...