  Magnetic Feshbach resonances have allowed great success in the production of
ultracold diatomic molecules from bi-alkali mixtures, but have so far eluded
observation in mixtures of alkali and alkaline-earth-like atoms. Inelastic
collisional properties of ultracold atomic systems exhibit resonant behavior in
the vicinity of such resonances, providing a detection signature. We study
magnetic field dependent inelastic effects via atom loss spectroscopy in an
ultracold heteronuclear mixture of alkali $^6$Li in the ground state and
alkaline-earth-like $^{174}$Yb in an excited electronic metastable state
($^3$P$_2$, m$_J$ = -1). We observe a variation of the interspecies inelastic
two-body rate coefficient by nearly one order of magnitude over a 100-520G
magnetic field range. By comparing to ab-initio calculations we link our
observations to interspecies Feshbach resonances arising from anisotropic
interactions in this novel collisional system.
