Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Ancient Baby Bird Fossil Found in China The fossil of what may be one of the earliest baby birds has been found in northeast China. The fossil, estimated at 121 million years old, is curled up as though still in its shell.

Sci/Tech