In the first 20 million years of the Cambrian period, Earth experienced an explosion of life—a great evolutionary era dubbed ...

An international study led by Flinders University has found a fertile area of inspiration to explain an important step in ...

Nearly all of the animal life on Earth now have similar features on left and right sides, as well as a head and an anus.

(Kimmig & Bicknell, Trends Ecol. Evol., 2026) We may owe our very existence to an ancient poop explosion. If the earliest animals hadn't been such prolific poopers, life might not have diversified ...

But now, a review study published today in Trends in Ecology & Evolution hypothesizes that the ecosystem overhaul was also fueled by an explosion of poop.  In a modern ocean, animal excrement is a key ...

Learn more about a time period marked by an intense burst of evolution. 3 min read The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known. The Cambrian ...

Animals living about 500 million years ago spent time on mudflats that were periodically exposed to the air. The finding suggests that some of the earliest animals were able to survive outside of ...

Animal life is extraordinarily diverse and complex, having colonised almost all environments on Earth – from hostile hydrothermal vents in the deep sea to the skies across our continents. But all this ...

A newly described species from the Burgess Shale had three eyes, clawed limbs, and a tail full of gills—plus internal organs preserved in stunning detail. Reading time 3 minutes A newly described ...

Add Yahoo as a preferred source to see more of our stories on Google. Around 540 million years ago, the ocean erupted with complex life: Creatures rapidly transformed from simple, soft-bodied, ...

Scientists on Wednesday announced they can now give the world a new picture of Hallucigenia sparsa, a sea oddball that was so strange, it looks like something out of a hallucination or nightmare.

Cambrian Period creatures known as sea moths seemed alien because of their additional eye, but a study finds anatomical features more in line with modern animals. An artist’s impression of Mosura ...