Devastate Malign tümör adaptasyon do cows sleep standing up Yaprak toplama kabartma sığır
10 Animals that sleep while standing
Why Do Cows Sleep Standing Up?: Answering Kids' Questions (Questions and Answers about Animals)
Pet Doctor - Did you know that cows can sleep standing up, but they can only dream lying down? Who else wishes they could sleep standing up? Even just for a minute ;)
Night rituals for your cows
Cows can sleep standing up. – Paul Davies Cartoons & stuff
sleeping cows | Uh, by the way, cows don't sleep standing up. They may doze and chew ... | Cow, Cow tipping, Cute little puppies
BBC Radio 4 - Radio 4 in Four - Nine udderly fascinating facts about cows
Why do cows and horses really sleep standing up? - Quora
Cows normally sleep in "cow... - Critter Creek Farm Sanctuary