How do dolphins breathe in the sea? How to swim in the sea

Dolphins do not breathe when they are in the sea, because their breathing organs are mouth, nose and lungs, so they have to swim to the water to breathe. Under normal circumstances, dolphins will surface first and use their mouth and nose to completely discharge the exhaust gas from their bodies. Then fresh air is sucked into the lungs through the nose and mouth, and oxygen is delivered to various parts of the body through the lungs. This way of breathing prevents dolphins from waiting in the water for a long time, but needs to float to the water regularly to breathe.

1. How do dolphins breathe in the sea?

Dolphins can't breathe in the sea, because unlike other fish, they breathe through their nose and mouth. Most fish breathe through gills to filter oxygen from water. Dolphins don't have gills, but like humans, they store oxygen through their lungs. When dolphins breathe, they will surface first and leak their heads out. Use the nose and mouth to completely discharge the waste gas in the body, then use the nose and mouth to inhale fresh air, and finally use the lungs to transmit oxygen to various parts of the body.

Because of this way of breathing, dolphins can't move in water for a long time. Generally speaking, dolphins breathe on the water every 20-30 minutes, but different species stick to it for different times.

2. How Dolphins Swim in the Sea

Dolphins rely on their tails when swimming in the water. When they want to move forward, they will swing their tails to increase their speed. Of course, they also rely on fins to keep balance and control direction. So when they swim, their tails and fins move together, so that they can be more comfortable. Dolphins have pointed beaks, which makes them swim faster in water.