国立科学博物館・恐竜博2023
歴史は好きだけど、恐竜時代はティラノサウルスぐらいが頭に浮かぶだけ。学校でほとんど習わなかった。古生代のアンモナイトや氷河期のマンモスぐらいだ。今回、小学2年生が恐竜博に行きたいと言うのでつれて行った。恐竜の入門書を読んだ。地球が生まれたのは46億年前、それから8億年後に生物らしきものが誕生した。2億3000万年ごろに恐竜が誕生した。恐竜は6600万年前に小惑星の衝突で絶滅した。人間は20万年前の誕生、という流れだ。恐竜時代は1億6400万年。恐れ入ります。
科学博物館の展示でよかったのはズール・クルリヴァスタトルという草食恐竜の展示。米モンタナ州で発掘されたもので、全長8メートル、鎧を着たおおきなトカゲのようだ。「守り」を代表する恐竜で、鎧竜とも呼ばれ、肉食恐竜から身を守るため背中に大きなトゲトゲがある。尻尾の先はこん棒のようになっていて一撃を喰らわす。近くで発見された肉食恐竜のゴルゴザウルスのすねに傷がついていたという。専守防衛だ。
この日の博物館は春休み、子どもたちであふれていた。売店で恐竜のフィギアが飛ぶように売れていた。子どもは恐竜が好きだ。わたしも少し恐竜の知識を得た。今まで、トカゲ類の先祖が恐竜だと思っていたが、本当は鳥の先祖なのだ。勉強になったし、楽しい1日だった。2023.03.31
National Museum of Nature and Science Dinosaur Expo 2023
I love history, but when it comes to the age of dinosaurs, the only thing that comes to mind is Tyrannosaurus. I learned very little at school. Paleozoic ammonites and Ice Age mammoths. This time, I took a second grader who wanted to go to the Dinosaur Expo. I read an introductory book on dinosaurs.
The Earth was born 4.6 billion years ago, and 800 million years after that, life-like things were born. Dinosaurs appeared around 230 million years ago. Dinosaurs went extinct 66 million years ago in a asteroid impact. Humans were born 200,000 years ago. Dinosaur age is 164 million years. Thank you for your time.
The exhibition of the science museum was good, the exhibition of the herbivorous dinosaur called Zulu Kururivasutatoru. Unearthed in Montana, USA, it looks like a large armored lizard with a total length of 8 meters. A dinosaur that represents "defense", it is also called an armored dragon, and has large spines on its back to protect itself from carnivorous dinosaurs. The tip of its tail is shaped like a club, and it delivers a single blow. Gorgosaurus, a carnivorous dinosaur found nearby, has a scar on its shin. It's a defensive defense.
The museum was full of children on spring break that day. Dinosaur figures were selling like hot cakes at the shop. Children like dinosaurs. I also learned a little about dinosaurs. Until now, I thought that the ancestors of lizards were dinosaurs, but they are actually the ancestors of birds. I learned a lot and had a fun day. 2023.03.31