I'd like to follow the above post with pointing how similar and practically identical to each other are the shapes of plasma discharges in the lab, shapes of thunderbolts as depicted on ancient art (Zeus and Ninurta holding a bi-polar thunders), and shapes of cosmic objects like Ant nebula and general phenomenon of so called "jets" best known from emanating from neutron stars and quasars.
Here is time stamped short fragment of a video focusing on this:
Ernst Haeckel was a German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist and artist. He discovered, described and named thousands of new species.
He is an author of a book beautiful book "Art forms in nature" containing drawings of marine forms of life.
Below is a video made from pictures from this book. Note how shapes of some oceanic life forms are identical to bi-polar thunders and plasma shapes from lab experiments especially at 1:47, 3:25, 7:35. These are most obvious examples. If you will search for videos of plasma lab experiments on Project Thunderbolts profile or just on YouTube you will see that actually shape of many more of these animals are almost identical to shape of plasma which depends on frequency of the electric current.