$S^{2}$ satisfies the [Poincare Bendixon theorem](https://en.wikipedia.org/wiki/Poincar%C3%A9%E2%80%93Bendixson_theorem) but this theorem is not satisfied by higher dimensional spheres. For a related MSE post see the following. http://math.stackexchange.com/questions/861231/extension-of-poincar%C3%A9-bendixson-theorem-to-mathbbr3