Animals and other living things cannot escape time's arrow because we are founded on processes subject to the second law of thermodynamics.
A double life thanks to quantum weirdness may, it's reported, be achievable for very small living things... if you accept a virus as a living thing. It sounds as if the technique proposed would have the effect not of reversing the arrow but sidestepping it by multiplying the possibilities of existence.
The method proposed could, it's even suggested, be used on more complex life forms such as tardigrades. Well, tardigrades (also known as waterbears) are certainly tough, but this sounds like a stretch, at least for now.