Many major groups of animals that have become a mainstay in modern times first appeared during the Cambrian Explosion.

The Cambrian Explosion is a landmark moment in the history of life on Earth when many of the major groups of animals first ...

When the Cambrian fauna eventually arrived, Wood thinks it appeared in two pulses. The mollusks, for example, evolved just before the explosion, ...

Cambrian animals would have needed more oxygen than early sponges, concedes Canfield. “But you don't need an increase in oxygen across the Ediacaran/Cambrian boundary,” he says; ...

Animal Interaction Behind Cambrian Explosion? 'Missing' Ancestors Of Today's Animals May Not Be Missing After All Date: May 8, 2008 Source: Harvard University ...

A spiky worm with legs like noodles. A giant predator that looks like a cross between a walrus and a housefly. Many animals that evolved during the Cambrian period, 541 million to 485 million ...

The Cambrian Explosion saw an incredible diversity of life emerge, including many major animal groups alive today. Among them were the chordates, to which vertebrates (animals with backbones) such ...

Cambrian animals would have needed more oxygen than early sponges, concedes Canfield. “But you don't need an increase in oxygen across the Ediacaran/Cambrian boundary,” he says; ...

This Cambrian period critter is now considered a part of a specific group of arthropods called the mandibulates, who went on to become some of the most successful animals on our planet in and out ...

The animals lived on the muddy seafloor at least 330 feet (100 meters) below the surface. "The seafloor near which the animals lived would have been teeming with bottom life," Van Roy said.

The Cambrian Explosion is a landmark moment in the history of life on Earth when many of the major groups of animals first appear in the fossil record. New research, however, suggests that many of ...