The earliest known fossil that lead to humans was recently discovered in Ethiopia. Scientists have uncovered a lower jaw with five teeth. The jaw is estimated at about 2.8 million years old, and is nearly half a million years older than the previous record for a human-related fossil. This bone could help explain a branch in the human family tree. Listen to the story to find out how this fossil could fill a gap in the history of human evolution.
Story Length: 3:31
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AIR DATE: 03/05/2015
These levels of listening complexity can help teachers choose stories for their students. The levels do not relate to the content of the story, but to the complexity of the vocabulary, sentence structure and language in the audio story.
These stories are easier to understand and are a good starting point for elementary students or English learners.
These stories have an average language challenge for middle and high school students, and can be scaffolded for English learners.
These stories have challenging vocabulary and language and students may need to have some background knowledge to understand the story.