Fly more, live longer

Examination reveals that the most important factor linked to longer life is the ability to fly

GIVE ME WINGS  Bigger animals tend to live longer than smaller ones, but flying species tend to outlive others of their size (select examples shown).

K. Healy et al/Proc. Royal Soc. B 2014; S. Egts

Larger animals tend to live longer than smaller ones, but a new study finds some interesting exceptions to the rule.