  We will present a review of selected results on strange baryon production
from nucleus-nucleus collisions at the AGS, SPS and RHIC. From the AGS and SPS
heavy ion physics program several intriguing aspects: centrality dependence of
strangeness production, anti-hyperon yield, hyperon production enhancement and
baryon number transport will be highlighted. Our discussion on RHIC results
will focus on experimental probes of partonic degree of freedom. Measurements
of the elliptic flow v2 and the nuclear modification factor and their
distinctive particle dependence are presented as a function of transverse
momentum.
