Not usually, that is just them relaxing. But they may be too tired to stand, sick, pregnant, or wounded. You may need to take him/ her to the vet.
in the ground
"Ovi" means "eggs." Horses do not lay eggs!
Horses, flys, and dogs
Yes, horses do lay down to sleep, but it is less common for them to sleep in this position compared to standing up. Horses have a unique ability to sleep both standing up and laying down, and will choose their preferred position based on their level of comfort and sense of security in their environment.
no they lay them in the sky
No, they don't.
There are thousands of things that lay close to the ground. There are cars that are made to sit really low, just barely off the ground. Outside animals often lay on the ground when they sleep or rest.
Zebra's behave pretty much like horses and don't have "nests". They lay down when and where it suits them.
No horses are viviparous (give birth to live young). Monotreme mammals lay eggs
Horses give birth to live young
no the only male animal that can lay eggs are sea horses
in the ground