The hoatzin (Opisthocomus hoazin) is a South American strict folivorous bird, with a crop microbial ecosystem that ferments dietary plants. Chicks progressively become independent from the adult-fed ...

Have you ever heard of the smelly bird that has claws on its wings? Yes, such an animal does exist—and it’s called the hoatzin. This bird is known for its rotten scent, thanks to its hardworking ...

'Rare' ancestor reveals how huge flightless birds made it to faraway lands Aye-ayes: The strange nocturnal lemurs with long, creepy fingers Headless chicken monster: The deep sea cucumber with tubular ...

Discover the hoatzin, a stinky, leaf-eating bird of the Amazon rainforest with a cow-like digestive system, striking appearance, and unique evolutionary history. If you were to conjure up the ...

The Condor, Vol. 97, No. 3 (Aug., 1995), pp. 675-683 (9 pages) Foregut fermentation in the Hoatzin (Opisthocomus hoazin) appears to be a unique adaptation among birds. Passage rates of liquid and ...

It flies awkwardly in the midst of vegetation along the river in the Amazon Forest, its only contemporary habitat. There it eats leaves and nothing else. It has a large beak and its digestive system ...

The Hoatzin is a fascinating blend of bizarre looks, unusual habits, and a unique smell. Photo Credit: X/@TheFrenchNugget ...

When Josefin Stiller was growing up in Berlin, she loved reading about Greek gods in an encyclopedia of mythology. She often lost track of their relationships, however—their feuds, trysts, and ...

Where it lives: Amazon and Orinoco river basins in South America What it eats: Leaves, fruits and flowers Why it's awesome: The hoatzin is often regarded as one of the world's strangest birds.