Chihuahuas have been popular companion dogs for millennia. The tiny teacup Chihuahua is a much more recent arrival on the pet scene, but the teacup Chihuahua is not a new breed of dog. In fact, teacup is just a cute and catchy word that breeders and owners have coined to describe a Chi...
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Did you know that some of the smallest animals in the world are about the size of a bee? And there are some animals who are even tinier than that! If you’re curious now about what the smallest animal in the world is, check out this list of super small animals. Plus, find out wha...
For decades, scientists have been trying to make a true molecular chain: a repeated set of tiny rings interlocked together. In a study inSciencepublished online Nov. 30, University of Chicago researchers announced the first confirmed method to craft such a molecular chain. Many molecules described...
1. Why do people have dogs as pets? A.Dogs used to live in caves. B.Dogs are easy to be taken care of. C.Dogs come in all shapes and sizes D.The passage doesn't tell us about it 2. The world's smallest dog weighed half as much asaccording to the passage. ...