Big, flightless birds like the ostrich, the emu and the rhea are scattered around the Southern Hemisphere because their ancestors once flew around the world, a new study suggests. That's a ...

The monstrous terror bird once roamed the earth, but it didn't manage to survive into the modern day. If it did, though, the world might look quite different.

When large mammals soon evolved, being flightless became a liability, as mammals competed with the birds for resources, or even hunted them. Today’s ratites avoided extinction by running for ...

Ever wondered what the world's most aggressive bird is? Here's everything you need to know about the cassowary.

Cassowaries are connected to other large, flightless birds, including ostriches, tinamous, rhea, emus, and kiwis.There are 60 species in this group; all other birds belong to the much larger ...

A large, flightless exotic bird likened to a 'living dinosaur' and infamous for killing its 75-year-old owner in Florida this month is back on the market.

A cassowary, a large flightless bird native to Australia, shocked beachgoers at the Bingil Bay Campground in Queensland by emerging from the ocean after a long swim ...

ALACHUA, Fla. (AP) — A large, flightless bird native to Australia and New Guinea attacked and killed its owner when the man fell on his farm in Florida, authorities said Saturday. The Alachua ...

Molecular analysis of the eggshell structure of large flightless birds such as ostriches and emus provides new insights into how they evolved. The study, published today in eLife, demonstrates ...

The large, flightless bird has been extinct for centuries. Madison Dapcevich Published April 9, 2025. Image courtesy of TikTok user @strangecreatureencounter. Claim: ...

Strutting through the backyard was a weka — a large brown flightless bird known for its feisty personality, officials said. Andreoli immediately knew the bird was in an unfamiliar location.