Hello friend @oishymaria,You have mentioned some endangered animals of our Bangladesh which is very sad to see because these animals have saved the biodiversity of our Bangladesh. It is true that many animals like hippopotamus are disappearing from our country over time. Earlier I used to see forest cats, tigers, foxes etc in the small forest near my house which are not seen anymore. The main reason behind this is the free judgment of humans and the destruction of animal habitats by deforestation. However, the government of our country has taken some important steps to protect these wild animals, which may save these animals from extinction. I appreciate your presentation.