322 species · 4 animal classes · zoo-born populations
Who lives longer — him or her?
Each bubble is one species. Position on X tells you how long males live in captivity;
Y tells you how long females live. Everything above the diagonal means females outlive males.
Everything below — males win. The gap is wider than you'd expect.
Data: AZA Species Survival Statistics — Median Life Expectancy (MLE) for zoo-born populations, July 2018
Sondaar & Watts (2019) · Scientific Reports · doi:10.1038/sdata201919