Albertosaurus Pack Hunting

Ongoing research in dinosaur-bearing strata north of the Royal
Tyrrell Museum in Alberta, Canada, is revealing to Dr. Phil Currie
and his team, a death assemblage comprised of more than a
dozen Albertosaurs of various ages and sizes. Along with these
remains are a few elements identified as coming from the
crested lambeosaurine, Hypacrosaurus altispinax. Comparing
the data from this locality with theropod mass mortality sites
elsewhere in the world, a suggestion of pack hunting behavior is
strongly indicated.