When approached, butterfly vipers often reveal their presence by hissing, said to be the loudest hiss of any African snake—almost a shriek.
When approached, butterfly vipers often reveal their presence by hissing, said to be the loudest hiss of any African snake—almost a shriek.
Puff adders are known to make extremely loud hissing noises through their noses as part of their respiratory functions. They also puff loudly.
• Image | © Internet Archive Book Images, Public Domain
• Sources | (ITIS, 2017; Lipsett 2003; Mallow, Ludwig, & Nilson, 2003; Rogers, 2000; Spawls, Howell, Drewes, & Ashe, 2004; The Wikimedia Foundation, 2018)
