02:25
Reason, Reflection and Language
Philosopher Daniel Dennett talks about the power of language. He observes that it is language that gives humans the ability to look into the future, as well as to reflect and reason in ways other organisms cannot.
01:12
The Ocean's Memory: Biogenous Sediments
While most sediments are terrigenous, there are other sediments that are also found in the marine environment. Biogenous sediments are those that form from the shells or skeletons of marine animals.