https://www.livescience.com/4880-shock-animal-earth-surprisingly-complex.html

Apr 9, 2008 ... Earth's first animal was the ocean-drifting comb jelly, not the simple sponge, according to a new find that has shocked scientists who didn't ...

https://www.bbvaopenmind.com/en/science/bioscience/what-were-the-first-animals-on-earth/

Nov 5, 2018 ... 575 million years ago, the Avalon explosion gave place to the emergence of the first animals over the surface of the Earth such as Dickinsonias ...

https://www.nsf.gov/news/news_images.jsp?cntn_id=111408&org=NSF

The comb jelly could only have achieved its apparent seniority over the simpler sponge via one of two new evolutionary scenarios: 1) the comb jelly evolved its ...

https://allthatsinteresting.com/first-animal-on-earth

It's been confirmed: the first animal to ever evolve on Earth is… the sea sponge. We realize this might be a little disappointing, but wait, there's more! Real life ...

https://www.nsf.gov/news/news_summ.jsp?cntn_id=111408

Apr 10, 2008 ... A new study mapping the evolutionary history of animals indicates that Earth's first animal--a mysterious creature whose characteristics can ...

http://explorecuriocity.org/Explore/ArticleId/166/who-were-the-very-first-animals-to-set-foot-on-the-earth-166.aspx

Jan 23, 2012 ... Roaming the earth some 230 million years ago, they are commonly thought to be one of the first animals in the world. But the first animals on ...

https://www.independent.co.uk/news/science/first-animals-appear-earth-mystery-solved-scientists-snowball-bacteria-a7896641.html

Aug 16, 2017 ... New research has shed fresh light on how animals first appeared on the Earth. It is a story spanning hundreds of millions of years, of entire ...

https://www.mnn.com/earth-matters/animals/stories/what-was-earths-first-animal-new-study-finally-offers-answer

Oct 16, 2018 ... The first animal to evolve on Earth was probably a sponge that existed around 640 million years ago.

https://en.wikipedia.org/wiki/Timeline_of_the_evolutionary_history_of_life

This timeline of the evolutionary history of life represents the current scientific theory outlining ... The first known mass extinction in earth's history was the Great Oxygenation Event 2.4 billion years ago. That event led to the loss ..... This innovation causes a major burst of animal evolution through coevolution. First freshwater ...

https://answersingenesis.org/theory-of-evolution/evolution-timeline/earths-first-animal/

Jan 31, 2009 ... LiveScience: “Scientists Zero in on Earth's Original Animal” This just in: sea sponges are not the oldest animal around, according to a recent ...