One can find more information about bill receptors of the Platypus online in Wikipedia, RoyalSocietyPublishing, Reed, Biologists, Nature, NCBI, etc. among others.
You would not use a platypus anywhere. However, you might encounter one in Australia.
There is only one species of platypus (Ornithorhynchus anatinus) so the kind you find in Eastern Australia and Tasmania is the same one you find everywhere else that it lives. (Of course Eastern Australia and Tasmania is about the only place you will find the platypus in the wild - and note that Tasmania is actually part of Australia.)
Platypuses are neither endangered nor threatened. The platypus which lives in the Daintree rainforest is exactly the same as the platypus of New South Wales, Victoria and Tasmania, as there is only one species of platypus.The Australian Government lists the platypus as "common but vulnerable". The International Union for Conservation of Nature lists the platypus as "least concern".
Yes there is. You can find one in Millstream Falls National Park in Queensland. As for a picture of one, I don't know where you can find one.
The platypus is called the platypus wherever one happens to be in Australia.
There is only one kind of platypus, and that is the species Ornithorhynchus anatinus.
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There is only one genus of the platypus - ornithorhynchus.
Not an ordinary one, but Perry the Platypus can.
One does not use a platypus for anything. One allows it to live in peace in the wild.
There is just one species of platypus, Ornithorhynchus Anatinus. It is found only in Australia, and is the same species, whether it lives in the sub-alpine regions of the south, or in the tropical northern freshwater creeks. Platypuses are one of three species of monotremes, mammals that lay eggs.