Smart Signals Open Response

Dolphins use a sophisticated communication system that includes whistles, clicks, and body language. One of the most distinctive forms of dolphin communication is the “signature whistle,” which each dolphin develops to identify itself. Dolphins also use echolocation to navigate and hunt, coordinating their actions within a group. Their complex communication system is vital for social bonding, hunting, and avoiding predators.

This passage helps students explore the complexity of animal communication and how it compares to human language. The detailed explanation of dolphins’ use of sounds and signals supports vocabulary building and reading comprehension of technical subjects. Critical thinking is encouraged as students analyze how communication contributes to survival in the wild. The structure of the text serves as a model for informative writing, demonstrating how to clearly explain a multifaceted topic.