No.
Crocodiles are often seen on the beach, looking like they are asleep, with their mouths open. What they are doing is basking, they keep their mouths open to regulate their body temperature. People sweat, dogs and cats pant, and crocodiles open their mouths :)
You need to know the move dive and get something from underwater
Now you must go underwater - go east then go north - then dive up. then surf east then go underwater
Some animals cannot perspire (sweat) like humans can. When water evaporates it cools the body. Animals, like dogs, open their mouths and exhale water vapor. This has a similar effect as sweating.
Yes, crocodiles are able to open their mouths underwater due to a special flap in their throat that allows them to breathe while keeping their mouths open. This adaptation allows them to stay submerged and ambush their prey.
Discover scuba is an introductory scuba experience..... Designed to let someone acquaint themselves with the feel of breathing underwater.... Wearing dive equipment...etc. The dive may be used toward the open water cert.
to eat, or to sing, or to vomit into the mouths of their children
eels must open and cloth their mouths constantly in order to circulate water over their gills
they open their mouths and eat.
for food
They open their eyes and do it. Once you are used to it, it can be very fun. You can make it fun and challenging by throwing in dive rings, rocks, or quarters and looking for them by finding them only by opening your eyes underwater. This is great practice and lots of fun. Its also fun to swim with a friend underwater. Just try opening your eyes underwater and see how you do.
Many fish swim with their mouths open. They swim with their mouths open because the water goes into their mouths and out their gills, which is how they breathe.