Boas kill by cutting off blood flow, not airflow
![boa](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/07/ticker_boa_free.jpg?fit=860%2C460&ssl=1)
The rainbow boa Epicrates cenchria (shown) probably kills its prey by cutting off its captive's blood flow, not by suffocating it, as scientists had suspected.
karoH/Wikimedia Commons (CC BY-SA 3.0)
The rainbow boa Epicrates cenchria (shown) probably kills its prey by cutting off its captive's blood flow, not by suffocating it, as scientists had suspected.
karoH/Wikimedia Commons (CC BY-SA 3.0)