Cops in Alabama killed a slithering suspect when it took a bite out of one of their own this week.

Greenville Police Officer Marissa Morrison, a 28-year-old mother of three, parked her cruiser in a quiet scenic spot behind the Mac Crenshaw Memorial Airport toward the end of her overnight shift around 5:20 a.m. Monday to admire the gorgeous sunrise, AL.com reported.

Morrison, a two-year veteran and the department’s only female cop, got out of her patrol car to stretch her legs and take a snap of the sky, when a venomous timber rattlesnake suddenly latched onto her calf muscle, the outlet reported.

Morrison felt a sting — and once she heard the rattle, she knew what had happened.

“He was huge, and he gave me no warning,’’ she told the outlet. “I remember screaming and I ran away from him.”

She quickly got on her radio and issued an emergency alert.

“I know they heard the panic in my voice,’’ Morrison said. “Usually my radio traffic is pretty calm.”

Before long, her corporal, Jimmy Oliver, put her in his cruiser and rushed her to the hospital.

“I had started feeling lightheaded and I was shaking,’’ she told the outlet. “He just scooped me up and carried me inside.”

Morrison’s leg quickly swelled, and the bite span was 1½ inches wide.

After leaving Morrison at the hospital, her co-workers returned to the scene, where they killed the snake — which they discovered coiled up in the same spot and still rattling. Then they brought Morrison the rattle, the outlet reported.

The officer required 16 vials of antivenin at the hospital — but she still said it could have been worse.

“I’m 5 feet, 6 inches tall so I wasn’t that far from him,’’ she told the paper. “It could have bitten me in my arm, or somewhere else closer to my heart. I’m thankful it wasn’t.”

She credits her co-workers for doing “their best to get me to where I needed to be.”

“They did an outstanding job,” the officer added. “I’m so lucky and blessed to have them.”

It could be more than a month before Morrison is able to return to duty.

Timber rattlesnakes are typically at least 3 to 4½ feet long, according to the New York State Department of Environmental Conservation.

The venomous snakes have hollow fangs and a tiny rattle segment called a “button.”

Their venom is mainly used to immobilize prey, but a bite can be fatal to humans if left untreated.