The seahorse doesn’t do divorce:
It picks a spouse for life.
The wife’s the husband and, perforce,
The husband is the wife.
...
The porcupine’s
Advanced decline’s
A plight that must appal.
With quills so fat,
...
The adder is a British fish -
I'm sorry, I mean snake!
The error's one I've made and wish
I hadn't for its sake:
...