You have omitted the single most amazing fact about the platypus. It is one of only two monotremes, that is, a mammal that lays eggs, the other being the echidna.
It always aggravates me when stories about people being hit multiple times by lightning say, for example " lightning never strikes the same place twice. Tell that to Roy Sullivan " the go on to enumerate the many times he has been struck EACH TIME IN A DIFFERENT PLACE! The lightning has struck the same PERSON multiple times but not the same PLACE. The saying is therefore not disproved by this example. It is disproved of course by lightning conductors etc which are obviously hit multiple times.
The word "win" makes redundant the word "free" in the final paragraph unless of course you have in the past or intend in the future to offer prizes that will require payment by the winner.
It is disproved of course by lightning conductors etc which are obviously hit multiple times.