Creepy Aztec death whistles have strange effects on the human brain: ScienceAlert
From menacing hisses to blood-curdling screams, sound of Aztec Death Whistle It's…
Seven newly named species of frogs make whistles that sound like Star Trek.
Boophis pikei, a new species of Madagascar frogMiguel Vence (CC-BY-SA 4.0) Deep…
