Are Cows Really Unable to Walk Down Stairs? | Britannica
Danzeisen Dairy on Twitter: "Trivia Thurs! Cows can walk upstairs but not down because a cow's knees are unable to bend that way. http://t.co/1843RbexBE" / Twitter
Every Journalist Should Take Notes From This Pakistani Journalist Interviewing A Cow
Why don't cows walk over cattle guards? - Quora
Black Cow Stands On Stairs Beside Stock Photo 1058458958 | Shutterstock
So, Why Do Cows Need to Wear Bells? • New Life On A Homestead