What is the initial defensive reaction of a tree viper when it first feels its space is being invaded?

Answer

It usually freezes, relying on camouflage for protection.

The first line of defense for a tree viper when disturbed is typically to freeze in place, utilizing its natural camouflage to avoid detection.

What is the initial defensive reaction of a tree viper when it first feels its space is being invaded?
behavioranimalTreereptileviper