why do some animals sleep standing up?

@hm1177 (1223)
November 28, 2006 7:20am CST
like horses
1 person likes this
10 responses
• Kenya
4 Dec 06
u didnot see it sleeping. a horse rarely sleeps.
• United States
4 Dec 06
I really don't know. Do you? They do lay down too though.
@sunita64 (6473)
• India
3 Dec 06
Definately for the survival.
@masigho (976)
• Indonesia
3 Dec 06
horse - horse
I don't know why it be.| www.igho.web.id
@zman87 (635)
• United States
29 Nov 06
I have know idea why they sleep standing up i guess they just like standing up..........
• Pakistan
28 Nov 06
i think they feel comfortable in standing
• Pakistan
28 Nov 06
i think they feel comfortable in standing
@vhansen (2029)
• United States
28 Nov 06
Let's of animals sleep standing up for protection when they're outside.Inside horses and cows will lay down because they feel safe.If you ever see them try to get up from laying down,you'll understand why.It's very hard and awkward for them to get up quickly becasue of their body mass.Thus they would be easy prey for preditors.
@yogitha (1893)
• India
28 Nov 06
yes hores sleep
@brokentia (10396)
• United States
28 Nov 06
Because they are really tired? hahahahahahahaha Seriously, because in the wild, even when sleeping, they have to be ready to run if danger was imminent.