Chapter

Some Jurassic period birds were flightless

From Nature by Sambif

Concepts

1. Avian Ancestor

   "The fossil discovery of an early avian ancestor in China reveals that flightless birds lived alongside the known flying species."

2. Methane Satellites

   "Twelve methane-sensing satellites were tested for their accuracy in measuring controlled-release events in the Arizona desert over a year-long blind test. Many were found to detect and quantify relea