The duckbilled platypus is one of the strangest-looking creatures in the world. It has a beak in the manner of a large duck. Its body is covered in fur with four legs, webbed feet and mammary glands, which are unusual for an animal of this stature, and a flat tail in the manner of a beaver. Looked at from the side, it is not hard to believe that someone stitched together several parts of different animals.
To protect itself, the male platypus has a poisonous spur on its hind legs. It grows up to 50 centimeters, or 20 inches for the male, 17 inches for the female. It moves with an awkward, rolling gait, and protects itself by living in a burrow that can be up to 55 feet long! Although they are seemingly harmless, the venom of a platypus can kill a dog or cat quickly.
The effect of the platypus poison on humans has been documented a few times in history. It is not a pleasant experience. There are at least 25 elements in platypus venom. When the poison enters a victim, one protein in it causes blood to flow to the area of the bite. Acid in the venom causes a burning sensation. Another protein lowers blood pressure, causing shock and fainting, and certain components dssolve tissues and blood vessels, allowing poison to spread more rapidly. The strongest element of the poison works directly on the receptors to nerves that register pain. While an antidote exists, few visitors to a platypus home take their chances. Being bitten means a long hospital stay.