1. Giant panda: Primarily eats bamboo, but may also consume other plants, fruit, and sometimes meat.
2. Amur leopard: Preys on various animals such as deer, roe deer, and wild boar.
3. Blue whale: Feeds on krill, small crustaceans that form dense swarms in the ocean.
4. Mountain gorilla: Herbivorous diet consisting of leaves, stems, shoots, fruits, and flowers.
5. Orangutan: Mostly eats fruits, but also consumes leaves, buds, insects, and sometimes bark.
6. Black rhinoceros: Grazes on grasses, tree leaves, shoots, and shrubs.
7. Asian elephant: Has a broad diet including grasses, tree leaves, bark, fruits, roots, and agricultural crops.
8. Bengal tiger: Carnivorous diet including deer, antelope, wild boar, cattle, and sometimes fish.
9. Hawksbill sea turtle: Primarily feeds on sponges but also consumes jellyfish, sea urchins, and shellfish.
10. Sumatran tiger: A carnivore that preys on various animals, including wild boar, deer, and other hoofed mammals.
This list is non-exhaustive, and there are many more endangered species with varying diets. However, it provides a glimpse into the diverse eating habits of some of the planet's most critically endangered animals.