Geology

Symbiotic survival

One of the most diverse families in the ocean today—marine bivalve mollusks known as Lucinidae (or lucinids)—originated more than 400 million years ago in the Silurian period, with adaptations and life ...

Aug 01, 2014 5 / 5 (3) 0

Where have all the craters gone?

Impact craters reveal one of the most spectacular geologic process known to man. During the past 3.5 billion years, it is estimated that more than 80 bodies, larger than the dinosaur-killing asteroid that ...

May 28, 2014 4.8 / 5 (13) 4