Is there a relationship between the size of an organism and its life span? Give two examples in support of your answer.

(N/A) Life spans of organisms are not necessarily correlated with their sizes.
$1$. The sizes of crows and parrots are not very different,yet their life spans show a wide difference. The life span of a crow is $15$ years,while that of a parrot is $140$ years.
$2$. $A$ mango tree has a much shorter life span ($200$ years) as compared to a peepal tree ($2500$ years).