When we humans feel very tired, we often say that we can fall asleep standing up, but this is just a description. In reality, it is impossible for humans to sleep standing up, but there are many animals in nature that have this such a skill that humans do not have, for example, horses can sleep standing up effortlessly.
Sloth monkeys, the world's only poisonous primates
When you think of owls, you might think of harry potter's snowy white pet messenger hedwig, or any number of comical emojis. The owls are the funniest and most adorable of all birds, with their round eyes and occasional "Head tilts" That make them so cute.
