About This Book
The first vertebrate animals appear in the fossil record over 520 million years ago. These lineages diversified and eventually crept ashore leading to further evolutionary divergence and the appearance of the familiar charismatic vertebrates of today. From the tiniest fishes, diminutive salamanders,...
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Reading Time Estimates
17h 4m
slow reader
180 WPM
12h 17m
average reader
250 WPM
8h 46m
fast reader
350 WPM
π 184,250 wordsπ
25 days at 30 min/day
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WPM
Reading time
12 h 17 min
at 250 words per minute
Audiobook (1.5x)
13 h 39 min
at 1.5x narration speed
Audio 1x
20 h 28 min
Audio 2x
10 h 14 min
That's about:
- π 25 daysΒ reading 30 min/day
- π25 commutesΒ of 30 min each