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Property Organism Value Units ID Details
Approximate λmax of visual pigments, where known, in different butterfly species Butterfly Lepidoptera spp. Table - link nm 117174 Frentiu FD, Briscoe AD....
Time of radiation across the North American continent from a European ancestor Butterfly Limenitis spp. during the past 3 - 4 million years 117176 Frentiu FD, Briscoe AD....
Mass Zebrafish Danio rerio 0.18-0.73 g 102573 Chizinski, C.J., Sharma...
Global insect fauna Biosphere ~10^18 animals 116941 Kevin J. Gaston & Tim...
Density of compact bone vertebrates 2000 kg/m^3 108642 Brian Cotterell, Fracture...
Ratio of density of cancellous bone to density of compact bone vertebrates 1/10 to 1/2 unitless 108643 Brian Cotterell, Fracture...
Bone mass as a fraction of the total body mass in marine mammals Mammals ~8% for smallest dolphin to 20% for blue whale % 108640 Brian Cotterell, Fracture...
Power law for bone mass of extant mammals Mammals m=0.061M^1.09 kilogrammes 108641 Brian Cotterell, Fracture...
Bone mass as a fraction of the total body mass in land mammals Mammals ~6% for smallest mammals to ~27% for elephants % 108636 Brian Cotterell, Fracture...
Bone mass as a fraction of the total body mass Human Homo sapiens ~12 % 108637 Brian Cotterell, Fracture...
Fraction of species threatened by extinction as of 2005 Various 1/3 of all amphibians: 1/5 of all mammals: 1/8 of all birds N/A 106613 Food and agriculture...
Body temperature Mammals 30-42 °C 100925 Amazing numbers in biology...
Number of mammals that have gone extinct during the sixth mass extinction that started in the Late Pleistocene Biosphere >300 mammal species 117255 Davis M, Faurby S, Svenning...
Minimum energy for vision Unspecified Table - link N/A 111991 Hecht S, Shlaer S, Pirenne...
Number of prokaryotes in animals prokaryote Table - link N/A 102367 William B. Whitman,*†...
Shortening of egg incubation period when developmental temperature is increased from 28˚C to 32˚C Lizard Dipsosaurus dorsalis 27 days 113180 Farmer CG. Parental Care:...
Pupation occurs sooner in caterpillars that are allowed to aggregate compared to isolated siblings by Butterfly Small tortoiseshell Aglais urticae 67 hours 113181 Farmer CG. Parental Care:...
Number of times viviparity evolved independently within squamate reptiles (lizards & snakes) Reptiles ~100 times 113182 Farmer CG. Parental Care:...
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...
Divergence rate for protein coding mitochondrial DNA Human Homo sapiens 0.32 - 2.5 substitutions/site/Myr 113218 Peterson GI, Masel J....