How small were some dinosaurs?

 

                    Some dinosaurs were about the size of a chicken, or even smaller. Compsognathus was only about 70 cm long and was very lightly built. It was an agile and fast-moving creature, and is thought to have lived on insects and small animals. Specimens of Compsognathus have been found with the fossilized remains of their last meal —a lizard — still preserved. The skeleton of Compsognathus is very similar to that of a modern bird.

                   Like modern flightless birds, it probably scuttled about in the undergrowth to protect it from larger predators, feeding on any small animals it could capture.

Picture credit: google