No, the levitating frog is exactly what you'd expect if you had a strong enough magnetic field.

https://www.ru.nl/hfml/research/levitation/diamagnetic-levit... "Lesson #1: Everything can levitate It is possible to levitate magnetically every material and every living creature on earth. Molecular magnetism is always present, although it is very weak and usually remains unnoticed. It might give you the impression that materials around us are mainly nonmagnetic. But this is not true. They are all magnetic. We call them ‘diamagnetic’. With magnetic fields high enough you can levitate all diamagnetic materials. At our lab, we develop and build magnets that have a very high magnetic fields. We use it to investigate molecules and materials. And show the world a levitating frog."