Movie previews are called ‘trailers’
because they used to ‘trail’ at the end
of a film. Because cliffhanger endings
were so popular in the 1910s, trailers
were shown after the films in order to
tease the next movie in the series.
Scientists created the first cloned
horse by implanting a mare with an
embryo containing her own DNA.
After successfully carrying it to term,
the big day arrived, and the mare
literally gave birth to her own twin.