Unfortunately, or not, I don’t think there is a single species that can live forever. I think all life is based on consumption, one eating something else and growing until it exceeds its limits in environment, after which it decays to meet its carrying capasity.

Just recently I saw a very interesting veritasium video about entropy. He explains that life acts to increase entropy. Before entropy, nothing exciting happens. After entropy, nothing exciting will ever happen again. But as life causes entropy, that’s when the excitement and magic happens.

It’s an extremely profound video, and may give you comfort. https://www.youtube.com/watch?v=DxL2HoqLbyA&t=0