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.
A lying period typically lasts one-half to three hours, so a cow stands up and lies down many times per day. During the long lying periods in the middle of the day or during the night, the cow rises, stretches, and lies down again immediately â usually on her other side.