Did you know vs Did you know

Some examples from the web:

• Did you know that dinosaurs had feathers?
• Did you know that on occasion, the neck doesn't actually break.
• Did you know that his father was wealthy.
• Did you know that 80%...
• Did you know that there are 5,000 teenagers here...
• Did you know that you can actually bet on the State Address.
• Did you know your husband bought Katerina gifts?
• Did you know that a squirrel sometimes has as...
• Did you know... the Tierpark, zoo, and Aquarium Berlin are committed to the worldwide protection of species.
• Did you know that today starts National Suicide Prevention Week?
• Did you know Massoulier was going hunting today?
• Did you know that the Apache used repeating rifles?
• Did you know they had dissolves in Shakespeare?
• Did you know that turkeys are polygamous?
• Did you know that Ive written 42 of these little books, and in each one of them, there's about four or five good pages.
• Did you know that some mushrooms are carnivorous?
• Did you know why the police were after you?
• Did you know my poor husband?
• Did you know that the flag was designed by a student named Edrice Lewis...
• Did you know I got an e-mail from MacKenzie today saying...

Some examples from the web:

• did you know? Improving your knowledge daily with interesting facts, stories and things that make you think. CONTACT / ADVERTISE · SUBMIT · DONATE ...
• Did you know 11% of people are left handed; Did you know August has the highest percentage of births; Did you know unless food is mixed with saliva you can't ...
• Did You Know shared a link. 35 mins ·. What Happens If All The Bees Die? [ VIDEO]. Since 2006 there has been a mysterious decline in the bee population.
• Feb 25, 2014 ... Interesting facts about Digital World and Information Technology (IT) evolution and the changes in society. Based on the original: Did You Know ...