| Examples of Variables to be included in Comparative Database |
| Ecological & Life History Variables |
Brain related variables |
| English name of species |
Adult Brain weight |
| Binomial nomenclature |
Neonate brain weight |
| Dietary classification |
Brain advancement at birth |
| Geographical region |
Total brain volume |
| Altricial vs. Precocial |
Cerebellum volume |
| Adult body weight by sex |
Diencephelon volume |
| Basal metabolic weight |
Telencephalon volume |
| Life span |
Septum volume |
| Gestation period |
Striatum volume |
| Predation index |
Hippocampus volume |
| Exposure index |
Neocortex volume |
| Maternal body weight |
Thalamus volume |
| Time of peak milk lactation |
Hypothalamus volume |
| Peak daily yield of milk |
Area striate (visual cortex) volume |
| Milk energy output |
Amygdala volume |
| Energy output/maternal metabolic mass |
Corpus collosum volume |
| Weight of individual young |
Parasite risk |
| Average litter size |
Parasite species richness |
| Lactation stage (days after birth) |
Mean prevalence of common parasites |
| % of fat in milk at peak lactation |
Leukocyte counts |
| % of protein in milk at peak lactation |
Intensity of infection |
| % of sugar in milk at peak lactation |
Body temperature |
| % of ash in milk at peak lactation |
|
| % of dry matter in milk at peak lactation |
|
| Combined testes weight |
|
| Relative testes size (to body weight) |
|
| Breeding system |
|
| % litters with multiple paternity |
|
| % of normal sperm in ejaculate |
|
| % of motile sperm in ejaculate |
|
| Sperm length |
|
| Coefficient of variant of sperm length |
|
| Play behaviors |
|
