If they are threatened, kingsnakes will emit an unpleasant musk and shake their tails.
This is another example of Batesian mimicry, this time of a rattlesnake.
They are also known to bite, though their bite is not poisonous to humans.29 Feb 2016
Are California king snakes aggressive?
California Kingsnakes are relatively docile when compared to similar sized snakes, but they tend to be anxious. They generally won’t become aggressive unless agitated. Signs that your California King is feeling stressed include hissing, rolling into a ball, and vibrating the tail quickly (like a rattlesnake).
Are California king snakes dangerous to humans?
All kingsnakes are non-venomous, but are powerful constrictors and generally kill their prey through suffocation. California kingsnakes are naturally resistant to the venom of rattlesnakes, but are not totally immune.
How long do California king snakes live?
10 to 15 years
Photo in the article by “Wikipedia”