PALINDROME

Picking out words or phrases,
Always the same in either direction,
Like level or race car or dad,
Is much trickier than it seems.
Never is there a dud when you need one.
Did you know "a man, a plan, a Canal Panama,"
Reverses to read the very same thing?
Or do you need a pup to make it clear?
Madam Adam can be backwards too.
Easy to read them, but palindromes are hard to find.