What is a dinosaur that still lives among us today?

What does the author compare to living birds in this text?

Read this sentence from the text. "Based on the evidence of shared characteristics, scientists have concluded that birds are a type of theropod dinosaur." What is a piece of skeletal evidence that supports the conclusion that birds are a type of theropod dinosaur?

Read this sentence from the text. "Based on the evidence of shared characteristics, scientists have concluded that birds are a type f theropod dinosaur." What is a piece of behavioral evidence that supports the conclusion that birds are a type of theropod dinosaur?

What is the main idea of this text?

Read these sentences from the text. " One of the brains sampled by Dr. Balanoff was that of Archaeopteryx, a non-bird dinosaur that was thought to mark the transition from non-bird dinosaur to bird. 'If Archaeopteryx had a flight-ready brain, which is almost certainly the case given its morphology, then so did at least some other non-bird dinosaurs,' says Dr. Balanoff. She points out though, that there is no longer a clear boundary showing where the non-bird dinosaurs end and where birds begin. 'That's how evolution works. It can be a slow and messy process, and eventually we end up with the amazing diversity of things flying around us today.'" What does the word "evolution" mean here?

Choose the answer that best completes the sentence. Bigger brains in primates prepared the way for them to walk on two legs. ___________, bigger brains in dinosaurs prepared the way for flight.