How do Blowhole help the whale to survive in water?

Blowholes are specialized respiratory openings located on the tops of whales' heads, allowing them to breathe efficiently while swimming. They enable whales to take in air quickly at the surface without needing to fully emerge, which conserves energy and minimizes exposure to predators. The blowhole is equipped with a muscular flap that seals it when the whale is underwater, preventing water from entering the lungs. This adaptation is crucial for their survival, as it allows them to dive for extended periods while still being able to access oxygen when needed.