Casuariiformes, the group that includes cassowaries and emus, are fascinating birds with several key characteristics:
Large Size: Cassowaries are among the heaviest bird species, with some individuals reaching up to 6 feet (1.8 meters) in height and weighing up to 130 pounds (60 kilograms). Emus, while smaller, are still quite large, standing up to 6.6 feet (2 meters) tall.
Flightless: Both cassowaries and emus are flightless. Their wings are reduced to small, non-functional stubs, adapted more for balance and display rather than flight.
Strong Legs: They have powerful, long legs adapted for running at high speeds. Cassowaries can run up to 31 miles per hour (50 kilometers per hour), and emus can reach speeds of around 30 miles per hour (48 kilometers per hour).
Distinctive Plumage: Cassowaries have a unique appearance with their bright blue and black plumage, and a distinctive casque (a helmet-like structure) on their heads. Emus have softer, brown plumage with a shaggy appearance.
Large Feet: Cassowaries and emus have large, strong feet with sharp claws. Cassowaries, in particular, have a large, dagger-like claw on each foot that can cause serious injuries.
Omnivorous Diet: Their diet can include a variety of items, such as fruits, seeds, insects, and small animals. Cassowaries are known to consume large fruits that other animals might not be able to eat.
Behavioral Traits: Cassowaries are known for their solitary nature and can be quite aggressive, especially when threatened. Emus are generally more social and can often be seen in groups.
Unique Sounds: Cassowaries produce low, rumbling sounds and booming calls, while emus have a distinctive drumming call and other vocalizations used for communication.
These characteristics make Casuariiformes distinct and well-adapted to their respective environments.
| Family Name | Family English Name |
|---|---|
| Casuariidae | Cassowaries and Emu |