Simplify the following text for a Grade 11 native English-speaking person.
Original: Other rainforest fauna includes 200 species of butterfly including 11 endemic butterflies one of which is the huge Green Birdwing , the Green Tree Python and the Northern Quoll a forest marsupial that is now severely depleted from eating the introduced poisonous cane toads .
Simplified: Other rainforest animals includes 200 species of butterfly including 11 endemic butterflies one of which is the huge Green Birdwing , the Green Tree Python and the Northern Quoll . Number of this forest marsupial have dropped because they have tried to eat the introduced poisonous cane toads .