09-04-2014 07:00

There is a new exhibition at a New York museum. It is about pterosaurs.

Pterosaurs were not related to bats, nor to birds. They were closely related to dinosaurs, but they were not dinosaurs. They were a unique group. These animals lived 66 million years ago. They were the first animals with backbones to evolve powered flight. They were really unique in that way.

They were also the largest flying animals we know of right now. Some of the pterosaurs had wing spans up to ten meters across!

Difficult words: backbone (row of bones down the centre of your back), evolve (change their bodies over time to be able to fly), wing span (size of the wings).

You can read the original story and watch the video in the Level 3 section.