No they can't.
This insect swims upside-down and carries a bubble of air on its ventral side which gives it a silvery appearance. The ventral side is covered in hairs which prevent water from covering the spiracles that the insect uses to breathe.
A Great Diving beetle will first collect air bubbles in their wings cases which allows them to breath while they are under water. The shape of their body and how they move their wings under water is what allows them to move quickly.
You'll either have to hold your breath or have a SCUBA tank.
Great diving beetles have the ability to dive under water in order to hunt for small fish. Prior to diving, they store a supply of air bubbles in their wing cases and use them to breathe while under water.
There a type of beetle which dive in after other animals. Their diet is other insects,small fish, and tadpoles. They have a air bubble coming out of the elytra, (wing case) which allows it to breath under water for a long period of time.
isn't it a scoober diving kit?
goggles and snorkel or an oxegen tank used for deep sea diving
Breathing underwater can be difficult if you do not have the right equipment. A snorkel can help you to breath or you could use a scuba diving mask with oxygen.
No, no mammals don't have gills, and can't breathe under water. Mammals have lungs, breathe air and have to hold their breath when diving.
They aren't. They're really good at holding their breath, but every now and then they have to surface and take a breath or two before diving again.
While you could try, it is not recommended. If you attempt to take a Beetle underwater without specialised modifications, the car will most likely be unable to function because cars do not have gills.
1) predaceous diving beetle 2) water bug
Small fish, the larvae of the Diving Beetle, and Tadpoles.