The Books Insiderindependent audiobook data
Earth and Life: A Four Billion Year Conversation by Andrew H. Knoll

Earth and Life: A Four Billion Year Conversation: Audiobook

According to The Books Insider's catalog data, the Earth and Life: A Four Billion Year Conversation audiobook runs 8.2 hours unabridged, narrated by Christopher Ragland (about 5.5 hours at 1.5× playback speed).

8.2listening hrs
Animals & Nature (Non-Fiction)store shelf
2026released
Free for new listeners

The instrument When will you finish it?

Based on 8.2 hours of listening.

Days to finish Earth and Life: A Four Billion Year Conversation at common listening paces
Your paceYou'll finish in
30 min / day17 days
1 hour / day9 days
2 hours / day5 days
1 hour / day at 1.5×6 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 8.2 hours, it runs longer than 60% of the 4,073 Animals & Nature (Non-Fiction) audiobooks in our catalog.

More narrated by Christopher Ragland

Christopher Ragland narrates 293 unabridged audiobooks in our catalog, 2,260 hours in all.

All Christopher Ragland audiobooks, measured

About as long, on the Animals & Nature (Non-Fiction) shelf

648 Animals & Nature (Non-Fiction) audiobooks in our catalog run within 10% of this length. The most popular on the store:

Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.

About this listen

Earth and Life: A Four Billion Year Conversation is an audiobook by Andrew H. Knoll: a 8.2-hour unabridged recording, read by Christopher Ragland, released March 31, 2026, on the Animals & Nature (Non-Fiction) shelf.

The listen at a glance

Length
8.2 hrs
Narrated by
Christopher Ragland
Released
March 31, 2026
Format
Unabridged audiobook
Language
English
Store shelves
Animals & Nature (Non-Fiction)
ISBN
9780691289946

How to listen to Earth and Life: A Four Billion Year Conversation free

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Questions listeners ask

How long is the Earth and Life: A Four Billion Year Conversation audiobook?

Earth and Life: A Four Billion Year Conversation runs 8.2 hours unabridged. At 1.5× speed that drops to roughly 5.5 hours.

Is the Earth and Life: A Four Billion Year Conversation audiobook free?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates Earth and Life: A Four Billion Year Conversation?

Earth and Life: A Four Billion Year Conversation is narrated by Christopher Ragland.