Publisher. A+E Networks. In Tokyo, Commodore Matthew Calbraith Perry, representing the U.S. government, signs the Treaty of Kanagawa with the Japanese government, opening the ports of Shimoda and Hakodate to American trade and permitting the establishment of a U.S. consulate in Japan.
A platypus is often called a queer animal because of its  appearance. The platypus looks a little like an otter with the bill  of a duck and webbed feet, so it's a mixture o â¦ f different animals  traits, seemingly. platypus is often called a queer animal because of its  appearance. The platypus looks a little like an otter with the bill  of a duck and webbed feet, so it's a mixture o â¦ f different animals  traits, seemingly.
It is one of the few venomous  mammals; the male Platypus has a spur on the hind foot which  delivers a poison capable of killing a small dog or causing severe  pain to humans-pain which can last for months.The unique  features of the platypus make it an important subject in the study  of biology.his creature has a small, hollow, poisonous spur on the back of each of its hind feet. The poison cannot kill a person, but it will cause swelling and excruciating pain. The poison is enough to kill an animal the size of a small dog, and the platypus will only use it in self-defense.