A pair of researchers, one a paleoecologist with Utrecht University, the other an independent ancient crab enthusiast, have identified the largest known crab fossil claw ever discovered. In their ...

Horseshoe crabs, called living fossils, have been wandering the ocean's shallow waters for 445 million years and are still ...

Feb 12 (Reuters) - Environmental groups on Monday petitioned the U.S. government seeking endangered species protection for the American horseshoe crab, a "living fossil" under threat from ...

A tiny fossil of a sea creature that lived more than half a billion years ago sheds new light on the evolution of arthropods, the most species-rich and successful group of animals to inhabit Earth, ...

Fossils resembling modern horseshoe crabs have been found as found back as far as 200 million years ago and their blue blood (caused by a copper-containing molecule where humans use hemoglobin) is ...

Horseshoe crabs — also known as “living fossils” — have existed nearly unchanged for the past 445 million years, long before dinosaurs even existed, according to the Florida Fish and ...

A new ban on horseshoe crab harvests in Connecticut aims to turn the keystone species’ declining numbers around.

A horseshoe crab is seen swimming along the sea floor in coastal waters surrounding the Philippines. Horseshoe crabs are considered "living fossils", species that appear largely unchanged from ...

Prepare to be amazed by the largest catches ever made in fishing history. From Alaskan crabs to giant alligator gars, these ...

The special brains of spiders may have started to evolve in the oceans, long before their ancestors crawled onto land. A fresh look at a 500-million-year-old fossil by researchers from the ...