I love it when someone asks me if they are twins. I mean, really? Are we looking at the same two children? If you ask me that question you deserve it when I say, "Yes, but they were born 6 weeks apart" and then walk away.
But just in case someone were trying to tell our children apart, here is one very glaring difference. Kate has a natural (and I believe justifiable, for which this Mama is grateful) hesitation when trying something new, especially when it involves her falling from a height. Lucy, not so much. She will climb up and leap off just about anything with no thought for the consequences.
No fear vs. Some fear from Lisa on Vimeo.
Other than that, though, they are TOTALLY twins. Heh heh.