These include UFOs as well as sightings and encounters with "nonhuman creatures" such as Bigfoot and the Loch Ness monster.
这些现象包括不明飞行物，以及目击和遭遇的“非人类生物”，如大脚怪和尼斯湖水怪。
2
This refers to the idea that when objects trying to resemble humans aren't quite perfect, they can make viewers feel uneasy because they fall somewhere between obviously nonhuman and fully human.