casuariiform
Casuariiform is an order of large, flightless birds that includes the cassowaries and the emus. The term "casuariiform" is derived from the Latin word "casuarius," which was the name given by early naturalists to the cassowary. This order is characterized by its distinctive features, such as the casque on the head of male cassowaries and the powerful legs of emus. Casuariiform birds are native to Australia, New Guinea, and nearby islands. They are known for their strong, sturdy bodies and their ability to run at high speeds. The cassowary is the largest living flightless bird, while the emu is the second-largest. Both species are critically endangered due to habitat loss and hunting. Casuariiform birds play a significant role in their ecosystems, contributing to seed dispersal and nutrient cycling. They are also of cultural and economic importance to the indigenous peoples of Australia and New Guinea. Conservation efforts are ongoing to protect these unique birds and their habitats.