The culture and religion in which I live say one thing - after death, you move to the kingdom of heaven and there is no return to earth (unlike some other religions and cultures where it is believed that a person can return after death in another form, as a punishment or due to merit).
It's not that I haven't thought in what form I would like, if I could, after the end of this human life, to return to the living world again.
I don't think I would choose to return to human form, because I wouldn't bear another life in such an unfair world.
The only thing is to be born as the child of a king, whom the people love and who will not end up on the guillotine... so that I too can live and enjoy prosperity.
But I can bet, I probably would have been born as a poor person, even poorer than I was in this life, in which I had to get stuck well, in order to provide myself with a little more normal living conditions.
I know that even today among people, perhaps more than ever, there are poor, hungry and thirsty people... if I were reborn as a human, I would probably be in an even worse position than them.
And that's why, to be a member of human civilization again, the only conscious one on this planet, and in fact so unconscious and unconscionable... I don't want to.
An animal, maybe 🙂
I generally like animals.
Horse, dog, cat, parrot, elephant, donkey, bear, giraffe, wolf, beaver, tiger, frog... Or snake, butterfly, fox, pigeon, whale, lion, turtle, seagull, ant, dolphin...
I would choose all of that over being human again.
Because although these animals often fight each other, it is often the case between the same species, it is almost always out of existential urges. To ensure the propagation of the species, enough food, the best female...
But never to accumulate wealth for themselves, as a man does.
The human species, the only species on the planet that is willing to kill another human, just for damn money and power.
Well, let me answer the question:
• If you could change yourself into an animal which would it be and why?
At this moment, when I have achieved some peace and stability in my life, even though everything around me is unstable and threatened by wars, I probably wouldn't transfer into the body of any animal right now.
However, if I die, I would accept to return to the planet as a single bird, a sharp-eyed hunter, to be the
Golden eagle (Aquila chrysaetos).

In nature, it's hard for me to have a place to take a picture of this eagle, and I'm not going to prank a pigeon or a crow or have the content created for me by AI, I took pictures on TV, the work of another photographer.
Although the Golden eagle is the most widespread bird of prey in the northern hemisphere, it is essentially a loner and apart from a partner and a large territory that it considers its habitat, it does not need a crowd (almost like me now🙂).
I would choose to be a predator because I'm sick of feeling threatened and being prey in this world (although I've never been easy prey, I wouldn't want anyone in my other earthly life to think of me as prey).
May I be a ruthless hunter with sharp claws and beak, the greatest and most powerful predator in the sky.
Wings span up to two meters, with shiny feathers, vision as sharp as through binoculars and the speed of a crash like the speed of a supercar, up to 320 km/h.
A slightly slower and more sluggish man, with a vision aid (so that I could see at least half as well as an eagle), in the next life, I would accept 20 - 25 years of mastering the expanses of the sky, floating above mountain peaks, and hunting in nature.