Platypuses have dense, velvety fur. Their bill is leathery, not hard.
Yes, platypuses do have eyelids. They close their eyes when underwater, hunting by using the special sense of electroreception in their bill.
No. Platypuses do not have teeth. They have grinding plates in their bill, which they use to crush their prey before swallowing it.
Yes. The platypus is the only mammal with a bill of any sort.
Platypuses simply drink water by scooping it up in their bill.
A platyus's bill is dark slate-grey in colour.
Platypuses are not poisonous at all, as "poisonous" indicates that something is dangerous if you ingest (eat or drink) it.Adult male platypuses have venomous spurs on their ankles. There is nothing either venomous or poisonous about their bill. The bill is not called a beak.
Please check your bill again and post a new, separate question with its country of origin. There were no US bills dated 1936.
Please check your bill again and post a new, separate question with its country of origin. There were no US bills of any denomination with that date.
Please post a new, separate question with the bill's country of origin. There were no Federally-issued $1000 US bills dated 1925.
Bill is English.
Please post a new, separate question with the bill's country of origin. The US didn't print any bills dated 1958.