What Do Gorillas Eat?

An adult Grauer's gorilla male is estimated to eat 30 kg of plants every day, an adult female about 18 kg.
Apart from plants, they ingest soil occasionally. Perhaps this soil contains minerals that are missing in their plants, or the minerals neutralize poisonous substances in their food.
Although gorillas don't kill big animals, they regularly eat small animals (mainly insects). However, this constitutes far less than 0.1% of their food. In chimpanzees, up to 6% of the food may be animal matter.

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