Northern and Dwarf Cassowaries
Other notes on cassowary spatial ecology
Vocalizations and related displays (Folch et al. 2017a, except as noted)
Territoriality or competition for mates (Crome 1976; Davies 2002)
Submission and escaping aggressor
Play (Biggs 2013)
Promote seed dispersal and germination
Relationship with plants
Relationship with humans
The cassowary's casque likely functions as a social ornament of age, sex, and status.
Some researchers have speculated that the casque also plays a role in vocalizations (more research is needed).
The casque's complex internal structure has remained a scientific mystery for decades.
Image credit: © San Diego Zoo Wildlife Alliance. All rights reserved.
Image location: Lone Pine Koala Sanctuary, Queensland, Australia