#Seaturtles are air-breathing reptiles that have lungs, and will regularly come to the surface to breathe during active hours. However, they are known to stay underwater for much longer periods of time while sleeping. This one was trying so hard to stay awake, but his head kept falling forwards and backward until he finally gave in. 🐢💤 🎥 by Jacinta Shackleton Videography and Photography | Science Channel