Answer:
A reaction to being spooked that takes its name from waterfowl
Two people are born at the same moment, but they don't have the same birthdays. How could this be?
What has 3 feet but cannot walk?
I can be used to type and point you see. But don't forget, you can count on me. What am I?
White fat and fluffy, May even look like a puppy. Seems heavy but is light, Floats about without a worry, But if it turns dark you have to hurry!
People take me on walks and I run and have fun. What am I?