It is sad, but the population of koalas has ____ in Australia. There are ____ 23 million people in Australia - perhaps closer to 26 million. The number of grey whales ____ at 300,000 before starting to fall. There are ____ numbers of jellyfish in these waters, with the population up by around 15%. The growth was ____, with the numbers rising by 60% yearly. We can't be exact, but ____ of 200 species are endangered. There was a ____ fall in the number of platypuses from 20,000 to 19,500. The two graphs show a ____ between numbers of tigers in Africa and in Asia.

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