Monarch butterflies have disappeared in some parts of the US, but there are many winged creatures in the Mexican Monarch Butterfly Biosphere Reserve. In a video discovered by The Kids Should See This, entomologist and conservationist Phil Torres visits the UNESCO-protected butterfly sanctuary in Michoacan, which is located northwest of Mexico City, and could soon be classified as an endangered species, depending on the imminent decision of the US Fish and Wildlife Service – to move from the USA and Canada to the forests of Michoacán. Once there, they completely cover the pine and oyamel trees on which they land and form fluttering branches that at first glance look like a strange tree species.
"It's not just visually stunning. It's not just emotionally mind-blowing … It sounds absolutely magical [al]"says Torres," because you've never heard the sounds of tens of millions of butterflies flying around you because it's just happening here. It's one of the rarest sounds on earth, and you'll hear it right away. "
At about 5:40 in the video you can hear the soft hum of the butterflies ̵
[h/t The Kids Should See This]