Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly ...

A Cambrian fossil once thought to be a mollusk ancestor is now identified as a chancelloriid relative, reshaping ideas about ...

“It may be doubted,” Darwin wrote, “if there are any other animals which have played such an important part in the history of ...

Historically, many thought that humans were the only animals that could recognize an ... who studies the evolution of social cognition and communication at the University of Vienna.

Cell types in animals evolved by step-wise diversification into sister cell types, which is analogous to the evolution of species or genes. We can identify homologous cell types between species by ...

Discover the fascinating evolution of our furry friends in "12 Dog Breeds Evolving Before Our Eyes"! 🐶✨ In this enlightening video, we explore how selective breeding is shaping the characteristics of ...

Two species of worms have retained remarkably similar patterns in the way they switch their genes on and off despite having ...

Evolution takes some weird twists and turns to bring animals to their current forms. While evolution is based on random ...

Animals have evolved into millions of distinct species Since animals first appeared 600 million years ago, their evolution has led to an astonishing variety of life forms. Over time, animals have ...

That’s odd because most big cats are known to occasionally mate when given the chance—even very different animals, like lions and tigers, says study co-author Marc de Manuel, with the ...

The fossil's characteristics and burrowing behavior provide insights into early animal evolution and locomotion. Scientists have discovered Ikaria wariootia, a microscopic, wormlike creature that ...