A complete 4K camera and 3-axis gimbal system come integrated with the Phantom 3 Professional edition quadcopter from DJI.
Standing vs. Lying Down. It's a common misconception that cows don't lie down to rest and that they sleep standing up, just like horses do much of the time. In fact, cows actually lie down for up to 14 hours per day, standing up every few hours, stretching and then lying back down again.
Sufficient Sleep. To obtain a sufficient amount of rapid eye movement sleep, which is the deepest and most important type of rest, a cow must be able to lie down and have enough room to do so. Cows can't enter REM sleep while standing and this can lead to sleep deprivation.