4 ms·
How were able to detect the subsonic sound?
by tomjakubowski 3y ago
How were able to detect the subsonic sound?
- b112 3y agoMany animals are able to hear outside of our range of hearing. I tried to capture in when I noticed it happening on 2015, but you can't easily hear the sound, some of it was audible to me, but not with the camera I had (I had to grab the closest thing I could find). https://www.youtube.com/watch?v=cYl_d7dc-EY https://www.youtube.com/watch?v=cYl_d7dc-EY If you watch at 0:50, you'll see in a few seconds the crow is doing a whole-body movement. That's it making the sound, which I could feel against my skin. If you crank it, you can hear the weird, audible part of it. Then, before they really went to work again... one of the crows noticed me. And you can see at the end, the other gets really pissed that it didn't notice me. Basically, he walks to where he can see in my house, spies me, and is all "YOU BASTARD!" Part of an email I sent to a friend at the time: -- This is the first time I've noticed this behaviour. Crows can make sounds, and hear sounds, outside of our range of hearing. And, it was raining. Soaking the topsoil. It is also grub season. Soon, June bugs will appear, but right now they are in grub form, but pupating. I'm not sure if the added density helps in detection or not. You'll likely have to turn this up. I had to grab the nearest device I had, so the resolution sucks too. Watch the larger crow, as it walks around, sounding for grubs. It did this over a large portion of my lawn.. systematically. Wild stuff. --