Whales also live longer because it's evolutionarily advantageous for them to live longer (they have a long, fragile reproductive cycle). There's little need for

Whales also live longer because it's evolutionarily advantageous for them to live longer (they have a long, fragile reproductive cycle). There's little need for a fruit fly to live 100 years and historically it doesn't seem that there has been a great need for humans to do the same, either.