Turtles follow this rule, but lizards and snakes reverse it. For 10 points each:
[10h] Name this biological rule which states that within a broadly distributed clade, larger species are generally found in colder environments, and smaller species are generally found in warmer environments. Unlike Allen’s rule, this rule does not specifically describe the size of body parts.
ANSWER: Bergmann's rule
[10e] One example that illustrates Bergmann's rule is that brown bears are smaller than these Arctic bears, which live in a colder climate.
ANSWER: polar bears [or Ursus maritimus]
[10m] A rare example of ectotherms that conform to Bergmann’s rule is Leptothorax acervorum, which is a species of these eusocial insects about which E.O. Wilson wrote a 1990 encyclopaedic work.
ANSWER: ants [or Formicidae; anti-prompt on Myrmicinae]