With the tail.
useing his tail moving it back and forth he also sways his body a little
a siphon
a dolphin gets around by using its tail and flippers to propel itself through the water.
A jellyfish moves through the water by contracting and relaxing its bell-shaped body, pushing water behind it to propel itself forward.
It sucks in water and then pushes it out to propel itself.
The opposite direction of the water it moved.
A jellyfish swims by contracting and relaxing its bell-shaped body, pushing water out to propel itself forward. This movement is called pulsing, and allows the jellyfish to move through the water.
It spins to move through the water
their tail.
Cillia
A fish uses its fins to push water backwards and propel itself forwards.
expel
penguins have wings so they can propel themselves through the water