BOTH
The snout of the platypus and the echidna are not similar at all. The platypus has a broad, flat bill which is equipped with sensitive electroreceptors which enable it to detect electrical impulses given out by tiny invertebrates underwater. The echidna has a long, pointed snout which it will push into termite mounds to get to termites, but it has no electroreceptors.
Yes. Fossil evidence has shown that there was once a giant species of platypus which had teeth, unlike modern platypuses which only have grinding plates. This giant species was very similar to the modern platypus in every other way.
No. The platypus (Ornithorhynchus anatinus) is its own animal, though it has a 'beak' similar to a duck, a beaver-like tail, and lays eggs. The platypus is a mammal though, since it has milk secreations from the fur for its young.
There is no animal even remotely like the platypus. While some may consider the echidna to be similar, as it is an egg-laying mammal (monotreme) like the platypus, there are many more ways in which echidnas and platypuses are different.
Male platypuses have a venomous spur on each of their hind legs, through which they can deliver a poison strong enough to kill a small dog, and to cause almost paralysing agony to an adult human. Female platypuses do not have venom, but they are born with spurs. These spurs fall off by the time the young female is about a year old.
No. Platypuses avoid contact with humans as much as possible.
Human, cat, dog, iguana, duck-billed platypus.
Platypuses are monotremes. The exact origin of platypuses, or monotremes in general, is not well known. The platypus has only ever been a platypus. It has not been an otter, a duck or a beaver. Fossils of possible platypus ancestors indicate that, if it did indeed have other ancestors, they shared the same characteristics it has today.
Like all mammals, a platypus has two ears.Platypuses have no external earlobes, so in that sense they have invisible ears. They have external openings to the ear which are located either side of the base of the jaw.
Platypus eggs are soft and leathery, rather than hard-shelled.
They could, almost certainly.The habitat is similar to their habitat in Australia.
The platypus has quite a secure future. Although vulnerable to habitat loss and changes brought about by human interference, the platypus has enjoyed a resurgence in its population since becoming a protected animal. There are estimated to be as many platypuses now as there were when European settlement started.