The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved in ancient times, according to our newly published work. As paleontologists ...

The fossil shark Ptychodus was first identified 190 years ago, but in the intervening centuries of paleontological inquiry, a comprehensive look at the ancient fish has been hard to come by. Until now ...

The fossil record of sharks and related elasmobranchs offers a comprehensive window into the evolutionary dynamics that have shaped marine ecosystems over millions of years. From preserved teeth and ...

The Convention on International Trade in Endangered Species of Wild Fauna and Flora on Friday updated its regulation and monitoring of several iconic shark and ray species ...

Shark teeth are often considered the most common vertebrate fossils in the world, and for good reason. Each individual shark has rows upon rows of chompers that fall out and get replaced in conveyor ...

A recent study documented Florida's extensive list of extinct sharks and rays. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Florida is ...

When we imagine plants and animals from the deep past, we are necessarily doing so with incomplete information. A quick comparison of dinosaur illustrations from today and a few decades ago will ...

What the open mouth of Strigilodus tollesonae may have looked like with all of its teeth. While the land and underground passageways of Mammoth Cave National Park are now traversed by tourists, guides ...

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

Australian fossils reveal colossal 8-meter shark that ruled the seas 115 million years ago, proving shark lineages were ...

Two new-to-science shark species that lived more than 325 million years were discovered recently, the National Park Service announced on Thursday. The discovery was made through the Paleontological ...

Bruce J. MacFadden receives funding from the National Science Foundation. Stephanie Killingsworth does not work for, consult, own shares in or receive funding from any company or organization that ...