[For Seniors] Fun and Easy! Dinosaur Multiple-Choice Quiz (3 Options)

bird

They may not look much like dinosaurs, but birds are said to be their descendants. They were even featured as a theme in the movie Doraemon: Nobita’s New Dinosaur. Most dinosaurs went extinct about 66 million years ago, but the ones that survived are believed to be birds.

I don't understand.

When people hear about the extinction of the dinosaurs, many probably think of an “asteroid impact,” but it seems that while that hypothesis is considered the most likely, the actual cause isn’t definitively known. In addition to the “asteroid impact,” there’s also the “volcanic activity” hypothesis, which is likewise regarded as a strong contender.

Quetzalcoatlus

Quetzalcoatlus is said to have had a total length of over about 10 meters. Although it was one of the largest pterosaurs, it is thought that it may not have been able to fly long distances. Its name comes from Quetzalcoatl, the serpentine deity from Aztec mythology in Mexico.

Moshiryū

Moshiryū is a dinosaur discovered in 1978 in Moshi, Iwaizumi Town, Iwate Prefecture. It has no scientific name; “Moshiryū” is a popular name. Until the discovery of Moshiryū’s fossils, it was believed that dinosaurs did not live in Japan, and the find later became a catalyst for subsequent discoveries of dinosaur fossils in the country.

For thermoregulation

The plates on a Stegosaurus’s back contain many capillaries. It is thought that by exposing those plates to lots of sunlight to warm the blood, or to wind to cool it, the animal regulated its body temperature. Those plates on its back also look pretty formidable, don’t they?