The First Animals

The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old. The signals ...

First Animals | Oxford University Museum of Natural History

Life, As We Know It donation info. Search form. Search. Home; First Animals. First Animals. University of Oxford. Visit us.

The Rise of the First Animals | Scientific American

But then the pace of animal evolution began to accelerate. The fossil record indicates that after around 560 million years ago, the Ediacaran ...

And the First Animal on Earth Was a - National Science Foundation

The evolutionary history of the comb jelly has revealed surprising clues about Earth's first animal. Credit: Casey Dunn

What was the first animal on Earth? - Live Science

Dozens of different studies using everything from chromosome evolution over time to ancient fossils have boiled it down to two candidates: sponges and comb ...

What did the earliest animals look like? - Berkeley News

Most familiar animals, including worms, flies, mollusks, sea stars and vertebrates — and including humans — have a head with a centralized brain ...

Animal - Wikipedia

Evolutionary origin · Evidence of animals is found as long ago as the Cryogenian · The first body fossils of animals appear in the Ediacaran · Many animal phyla ...

Earth's first animals may have been sea sponges | Science | AAAS

Six hundred and sixty million–year–old fossils suggest sponges were among first species to populate sea ... Share: Facebook ...

New Oxford study sheds light on the origin of animals

Dickinsonia, one of the oldest animal fossils from the Ediacara Biota, Ediacaran Rawnsley Quartzite Formation, Australia. 560–550 million years ...

The First Animals - SUNY Orange

The origin of the bilateran animals has been estimated at 580 million years ago (Peterson, 2005). Fossils of animals found in Australia, India, and Texas have ...

Precambrian Creatures: The First Animals - YouTube

The very, VERY first animals aren't really talked about much, and that's a shame. What existed before the Cambrian explosion?

First Animals | Nature of Things - CBC

A new documentary from The Nature of Things takes you back to the Cambrian Explosion through newly-discovered fossils that tell us more about our own origins.

When did the first animals appear on Earth? We are now one step ...

An evolutionary 'clock' built on genetic mutation rates suggests animals first appeared about 800 million years ago. This would have been during ...

What did the earliest animals look like? | NSF

"The most recent common ancestor of all animals probably lived 600 or 700 million years ago. It's hard to know what they were like because they ...

Learning about the first animals from life at the poles

The amazing survival strategies of polar marine creatures might help to explain how the first animals on Earth could have evolved earlier ...

What was the first animal on earth? - BBC Wildlife Magazine

The first animals on earth – multi-cellular life-forms that breathe oxygen and consume other life-forms – have long been thought to have looked something like ...

First animals on Earth may have evolved earlier than fossils suggest

The first animals may have evolved sooner than fossils suggest, according to a study on the survival strategy of polar marine creatures.

Meet the First Animals - More Than A Dodo

Microscopic fossils record the first animal skeletons, which first appeared about 550 million years ago. These include the remains of complete ...

Scientists can't agree on when the first animals evolved

Scientists used to think animal fossils appeared suddenly in a time period around 500 million years ago called the Cambrian Explosion.

Study of Earth's first animals broadens understanding of early ...

Researchers at UC Riverside are studying the world's oldest fossil animal, Dickinsonia, to learn more about the evolutionary history of animals.