Both it just depends........
boa constricters
Boa constrictors live in Southern and Central America, naturally.
No - Boa Constrictors kill their prey by asphyxiation - they squeeze their prey until it cant breath in - and it suffocates.
yes because the boa can wrap around the owners neck which can cause cardeac arrest
they slither
Slithers
Small animals like a pig and other animals. Today the population of Boas is growing in the Florida swamps and they have cleaned out many small animals and birds.
they slither slowly
No. Snakes do not migrate. The boa constrictor is a tropical species, so it does not have to worry about cold winters.
How they move is they sliver but don't know how they travel
the feather boa is named after the boa constrictor!