Pyrochlore oxides are promising platforms for investigating emerging quantum phases. In previous decades, significant attention has been given to spin-1/2 pyrochlore compounds. In contrast, spin-1 counterparts have received considerably less attention. The fundamental distinction between half-integer and integer spin moments implies a qualitative difference in their magnetic properties. Thus, spin-integer pyrochlore oxides offer new opportunities for discovering novel electronic states. In this seminar, we present the unusual magnetism of the spin-1 pyrochlore ruthenate Nd2Ru2O7 within the R2Ru2O7 (R = Y and rare-earth ions) family. After optimizing sample growth, we performed neutron and X-ray scattering measurements on the high-quality sample, studying its magnetic structure and excitations, supported by ab-initio calculations. Through systematic analysis, we propose a nontrivial magnetic order and discuss its physical implications related to geometrically frustrated magnetism.