Why Do Turtles Extend Their Necks?

In some turtles, the ability to retract their neck inside their shell may have evolved in order to enable the head to project forward quickly to capture prey according to a paper published in Scientific Reports.

Why do turtles expand their throats?

It's just her breathing and sniffing the air. Spot puffs out his throat when he's about to be fed. My hatchling does it whenever his nose is out of the water. they do that becasue it helps aid their breathing, kinda like a diaphragm.

How do you know if a turtle is happy?

A healthy and happy turtle should have clear eyes with no discharge. They should also not show any signs of difficulty breathing. Swollen, cloudy, or "weepy" eyes with a discharge are all common signs your turtle is sick. Another very common sign is mouth breathing or straining to breathe.