Horses sleep while standing, unless it is necessary for them to get REM sleep. The amount of REM sleep needed is not much, so they will spend most of their time when sleeping, standing.
Global warming affects the spread of animals because different areas will become suitable for different species, so they spread out. This can cause diseases to spread, as the animals may bring them with them. This can also happen in the opposite direction, where the climate change causes less habitats to be suitable for animals, so they become more sparse
The ability to adapt to arid conditions can mean the difference between life or death for animals and plants that live in the desert. Some animals burrow deep underground in the heat of the day, lie in the shade until late afternoon or early evening, or have evolved salt glands, which allow their bodies to secrete salt but not sweat so they retain water. Most deserts have dry, arid climates with little to no rain, so every living organism that lives there must find a way to adapt, survive and thrive, or die.
I hope this helped
The answer is all of the above
