Here's why they do it:
* Food Source: Dead animals provide a source of protein and nutrients, especially in environments where food is scarce.
* Competition: If resources are limited, hermit crabs may compete with each other for food, and eating dead crabs is a way to gain an advantage.
* Shell Acquisition: Hermit crabs need empty shells to grow and protect themselves. Dead crabs can provide a source of shells.
However, cannibalism is not always the case. Hermit crabs also feed on a variety of other things, including:
* Fruits and vegetables: They enjoy soft fruits like bananas and melons, as well as leafy greens.
* Meat: They can eat small pieces of cooked meat and fish.
* Algae and seaweed: These provide a source of vitamins and minerals.
It's important to note that hermit crabs can be sensitive to certain foods. Avoid feeding them:
* Saltwater fish: The high sodium content can be harmful.
* Processed foods: These lack essential nutrients and can be unhealthy.
* Avocado: This fruit is toxic to hermit crabs.
To ensure your hermit crab's health, provide a varied diet that includes fresh fruits, vegetables, and meat, as well as commercially available crab food.