devonian
Strong Tides May Have Driven Ancient Fish to Dry Land
Jim Daley | Feb 15, 2018
A closer moon and ideal coastal conditions for tide pool formation may have started the evolutionary transition of tetrapods.
The Weird Growth Strategy of Earth’s First Trees
Shawna Williams | Oct 24, 2017
Ancient fossils reveal how woodless trees got so big: by continuously ripping apart their xylem and knitting it back together.