How Do They Sleep!!?

Oh my goodness kids! Did you know that horses, zebras, elephants, and sometimes cows sleep standing up! Well it is true. Horses able to do this through the stay apparatus, a special system of tendons and ligaments that enables a horse to lock the major joints in its legs. I don’t know how comfortable that would be if we slept standing. What do you think?  Another OMG for you to meditate on kids!