shorter
Ancient Clam Shell Reveals Shorter Day Length
The growth layers in a 70-million-year-old clam shell indicate that a year back then had more than 370 days, with each day being only about 23.5 hours. Learn mo…
Forests Getting Younger and Shorter
Old, big trees are dying faster than in the past, leaving younger, less biodiverse forests that store less carbon worldwide. Learn more about your ad choices. V…





