Which insect feeds on feathers, skins or horns?

The correct answer is the carpet beetles, which are known for their ability to feed on a variety of organic materials, including feathers, skins, and horns. This adaptability in their diet is a key characteristic of carpet beetles. They are particularly known to infest and damage items such as carpets, upholstery, and other fabric-based materials, as well as natural items like animal products.

Carpet beetle larvae possess the ability to breakdown keratin, a protein found in feathers and fur, making them particularly effective at consuming these materials. This behavior underscores their significance in pest management, especially in contexts where such organic materials are stored or utilized.

The other choices, while also a part of pest management discussions, do not share the same feeding preferences. For instance, cigarette beetles primarily target tobacco products and dried plant materials, while cabinet beetles are more inclined to feed on stored food products, particularly grains. Indian meal moths are mostly known for feeding on cereal products and other stored food items, rather than organic materials like feathers or skins. The distinction in diet emphasizes the unique role of carpet beetles in pest issues related to fabrics and organic materials.