PHILADELPHIA — A seven-foot boa constrictor slithered away from the home of the veterinarian who owns it.

Police in the Philadelphia suburb of Swarthmore and the snake’s owner, David Spiegel, said the snake likely doesn’t pose a risk to humans or even most pets — though it may well attack moles, frogs or birds.

Spiegel typically lets the snake sun itself in his yard, he said, but on Monday the snake was gone when he returned to check on it.

Residents have been alerted out of “an abundance of caution,” said Swarthmore Police Chief Brian Craig.

Spiegel said the snake is “friendly” with other pets as it has been raised with their children, two cats and a tiny dog.

According to Latoya Latney, the veterinarian in charge of exotic services at the University of Pennsylvania, boa constrictors tend to acclimate well to people and pets.

“But animals are animals,” Latney said. “If they fear they’re being attacked, they might attack.”