Why cant cows go downstairs but can go upstairs?

I've been wondering what this answer was. Sure its random...but I am determined to know why.

The head end's probably too heavy for it to balance when it goes down.
The question is so weird. Weird is awesome!

gee you have a random mind lol thats a good thing, I rekon she'd probably be able to go upstairs if shes strong enough, but I dont think it could easily go downstairs shed fall.

I would have thought it would be the other way round. I don't know, I've never heard that. I'm going to see if anyone does answer this... It's... interesting.

They could if each step was wide enough...

Where did you get this 'information'??

Its from that advert for the car thing! You know! It starts with did you know...Another 'fact' the give is that a duck can't walk without bobbing its head!

well its harder for them to see the stairs and gravity is pushing on them

Hoe do they get into those trucks then and get out?

they use ramps to get on slaughter trucks, not stairs. they cant go down stairs because they would have to lean too far foward and they wuld trip.

I guess its because they lose balance, seeing as its going down,

their joints just don't bend that way.

Ohhh. Yeh I never really thought about that. So they have a leg bending issue?

I think so...
like how our elbows don't bend backwards.