Yes, most horses react to loud sounds unless trained not to.
Yes, Platypus can be startled by loud noises and sudden movements
Ants don't respond to sound in the air like humans do. They hear with their knees and can feel vibrations produced by sounds. It is unlikely that ants would react to loud music.
it's not so much as loud sounds, but high frequency, or high-pitched sounds.certain bp levels of sound can cause spiders to move in certain patterns, but if the bp level is too high,it could kill the spider.
A neigh if it a loud full call that sounds like the horse is saying: neeeeeeiiiighhh!, a whinny if it a high pitched call that sounds like the horse is saying: whinnnnnny! and a nicker if it is a low repeated sound that sounds like the horse is laughing. The nicker is quieter than a whinny/neigh
Loud sounds instruments
Drums, trumpet, violin, and many more, make loud sounds.
Yes, some continuous loud sounds are related to hypertension (high blood pressure). In addition, sounds outside the audible range can make some people nauseous, etc., even if they are not all that loud. Loud sounds if sudden, sharp and loud enough, may damage your ear drums. An loud sounds experienced over a long enough period of time can damage your hearing.
loud
Sound is measured in Decibels. This is judged based on the human hearing. You can use a decibel meter to detect just how loud a sound is.
It is a good idea not to shout and scare the horse but on the other hand it is also a good idea to talk so the horse can hear you. Think how you would react if someone suddenly appeared behind you. So talk loud enough to be heard.
There are a lot more animals than just 2 that make unusual or loud sounds.
Extremely loud sounds.