A reptile that make a sharp sound before striking its victim?

The reptile you're referring to is likely the rattlesnake, which is known for its distinctive rattling sound produced by the segments of its tail. This sound serves as a warning to potential threats and can be heard before the snake strikes its prey. Rattlesnakes use this auditory warning as a defense mechanism, allowing them to avoid confrontation before resorting to a bite. Their strikes are quick and precise, making them effective predators in their environments.