Why is an older woman who dates younger men called a cougar?

* It's a slang term for a woman 'hunting for younger men ... cat woman stalking her prey', but there is nothing wrong with an older woman dating a younger man as long as he's not a minor. If it's alright for older men to marry young women in their 20's then it's just as right for women. For those who make comments towards you about dating younger men ignore them and just be happy. My own husband is four years younger than myself and we've been happily married for 37 years. Women are strong and they know what they need in their lives if they take time to listen to themselves, so always strive for what you feel will fill the needs you have as long as you are serious and treat the young men you are dating seriously and with respect.