A collection of fossil shells from marine snails and clams is challenging a theory that says the world’s deadliest mass extinction was accompanied by severe ocean acidification. Instead of showing ...

A collection of fossil shells from marine snails and clams is challenging a theory that says the world's deadliest mass extinction was accompanied by severe ocean acidification. The study is the first ...

Exceptionally preserved fossils from the Ediacaran period challenge what scientists thought was possible in sandstone. In the fossil record, creatures without hard shells or skeletons, such as ...

Learn how fossils form through sedimentation and mineralization. Discover types like moulds, casts, and trace fossils in our guide.

Longtime fossil collector Barry Norbeck donated thousands of shells and other invertebrate fossils to the Calvert Marine ...

Ocean acidification caused a mass extinction of marine life 66 million years ago, research into tiny shell fossils has shown. This could have implications for the current climate crisis, which is also ...

Hermit crabs move into other animals’ discarded shells as shelter, because the ocean is a treacherous place, full of hungry predators. Half a billion years ago, another creature evolved the same ...

How smushed shells could help to resolve paleontological mysteries. By Asher Elbein You never know where a bit of unusual scientific research is going to lead. Consider a 2012 study about turtle ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. In the depths of ...