This game compares published mammal trait estimates from PanTHERIA.

• Each round asks which photographed animal scores higher on one published mammal trait.
• PanTHERIA collapses literature sources into species-level estimates, so the values are broad comparative figures rather than field readings from one population.
• Only mammals covered by both the source dataset and the reviewed image pool can appear here.

Interbirth interval catches reproductive pacing from a different angle than litter size or litters per year.