I believe that not all species should be brought back, but only those that can help the survival of an ecosystem and other species within an ecosystem. If we were to bring all species, that species can become invasive that upsets the current ecosystem. Also, species can bring back a disease that may spread to other species in which can kill off an entire ecosystem. Bringing back extinct species is about seeking if we can draw help from reviving extinct species in which can successfully help an ecosystem and even prevent extinction of another species.ng back extinct animals may be a whole new discovery, it can bring great danger to currently existing animals and also humans in many ways.
