помогите №8 и 9. пожалуйста

1 Buffaloes are the ....... (heavy) land animals in North America. They can be 900 kilogrammes! 2 Birdwings are the .............(big) butterflies in the world. They live in rainforests and are poisonous! 3 Whale sharks are the............ (long) fish (14 metres) – but they are not dangerous. 4 Siberian tigers are the ...........(large) cats. There are only 400 in the world. 5 Scarlet macaws are the ..............(colourful) parrots in the South American rainforest