This green anaconda killed an ate a local dog, which it promptly refunds at the first sign of danger The primary objective of regurgitation is to increase mobility and escape potential peril. When an anaconda consumes a large meal, its body becomes heavy and sluggish, as digestion demands significant energy and can take days or even weeks. This 5-meter green anaconda, which can weigh up to 200 pounds, may struggle to move quickly after swallowing a sizable animal, making it vulnerable to threats.