103 Year-Old 'Wonder Woman' Reveals Her Secret To Life, Celebrates Birthday Volunteering At Senior Center
October 20, 2015
Mary Cotter just celebrated her 103rd birthday at the Montclair Senior Center, California, where she's been volunteering for the last 25 years.

The Wonder Woman costume she wore at her birthday "party" was a gift from her friends, who say she is a real life superhero.
So what's her secret to living a long, healthy life?
"Just keep busy, I guess," Cotter replied.
In fact, she's been busy for years. In 1930, Cotter helped her high-school win the state swim championship, she taught swimming to children into her 60s, and helped rescue sea turtles in her 90s.
Watch the news report on Mary below:
Click Here For The Most Popular On Sunny Skyz
Boy With Down Syndrome Nails The Whitney Houston Challenge, And The Crowd Goes Wild
The Funniest Wildlife Photos Of 2025 Are Here — And They’re Hilarious
This 30-Year-Old’s Christmas Gift To His Mom Is Going Viral
Police 'Arrest' A Lost Cat For 'Assault' — And She Has No Regrets
Police Officer’s Simple Question Leads To An Unforgettable Christmas Moment
Fumbles, Fails, And Funny Flags: The NFL’s Most Hilarious Game Day Moments
He Asked For Help Wrapping A Christmas Present — Then Surprised Her With A Life-Changing Gift
The Hug That Went Viral On Facebook
You Have To See This 'Piggy Train' Trotting Through The Snow
She’s Been Helping Hungry Children For Years — This Christmas, Someone Helped Her
This Teacher Found A Simple Way To Make Every Student Feel Loved
