Yellow-backed duiker
These forest dwelling antelope feed selectively on plants or plant parts such as shoots, roots, leaves, and buds, but their diet is mainly made up of fruits. The yellow-backed duiker is more efficient at digesting poor quality food than most other duiker species. This allows them to eat large, low quality fruits. Their diet makes them very hard to keep in captivity as most domesticated fruits are not well suited to their low fiber requirements. They are considered concentrate selectors, meaning they eat "diets relatively low in fiber, have a well developed ability to forage selectively, a rumen bypass, a rapid passage and high fermentation rate for starch, and they frequently encounter toxins."
Pythonidae
Larger specimens usually eat animals about the size of a house cat, but larger food items are known; some large Asian species have been known to take down adult deer, and the African rock python, "Python sebae", has been known to eat antelope. In 2017, there was a recorded case of a human devoured by a python in Sulawesi, Indonesia. All prey is swallowed whole, and may take several days or even weeks to fully digest.