Frogs.
Unfortunately,  when frogs get old…. they die.
Heart attacks for most of them.

Some drink too much beer.  They really love the hops.
I heard of one frog who was shot to death.
He went into a bank with a gun.  He wanted to robbit.
A few frogs have been known to get really sad, and Kermit suicide.
But most of the time, they simply just up and croak.

“The gods too are fond of a joke.” – Aristotle