Figure 2.
Rate of ageing as a function of (a) body mass and (b) initial mortality rate. Bird and mammal data from appendix tables A1 and A2 in Ricklefs (1998).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.