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Feb 29, 2016 03:00 PM ET // Jennifer Viegas
The crustacean-like animal lived long before the first dinosaurs emerged.
Feb 25, 2016 01:03 PM ET // Discovery News
A molecule in 640-million-year-old rocks, well before the Cambrian Explosion, comes from a simple sea sponge, according to new research from MIT.
Feb 16, 2016 09:28 AM ET // Stephanie Pappas, LiveScience
The creatures hunted down their prey and used their many legs to wrestle them into submission, newly discovered fossils suggest
Dec 11, 2014 09:10 AM ET // Stephanie Pappas, LiveScience
The animal that once lived in the ancient sea looks like a bird's nest in fossil form.
Aug 27, 2014 03:20 PM ET // Tanya Lewis, LiveScience
The specimen, approximately 560 million years old, contains fibrous bundles that appear to be muscle tissue, an important evolutionary adaptation.
Aug 6, 2014 01:09 PM ET
Some scientists are arguing that humans today are wiping out animal species at a rate that matches up with past mass die-offs. Is the end nigh? Laci Green has the details.
Jul 16, 2014 03:40 PM ET // Tia Ghose, LiveScience
One of the first predators of its day, the creature sported compound eyes, body armor and two spiky claws for grabbing prey.
Oct 16, 2013 03:55 PM ET // Denise Chow, LiveScience
A fossilized brain in the preserved remains of an extinct arthropod reveals an ancient nervous system remarkably similar to that of modern-day spiders and scorpions.