Then, some time later, there were their descendants, the early animals: multicelled creatures, still swimming, eating, reproducing, but doing it all as teams of cells. Exactly what happened ...

By combining data on all known bird species, this tree is the most impressive snapshot yet of one of Earth’s most awe-inspiring classes of animal.

The finding settles a central question about the evolution of the entire tree of animal life. All animal life is descended from a single common ancestor — a multicellular organism that most ...

In 1984, an amateur paleontologist in Scotland found a remarkable specimen: a nearly complete fossil of what looked to be a ...

A new study tracing the evolution of same-sex sexual behavior ... receiving funding to carry out such studies. See All Key Ideas The study of animals has always been a point of curiosity for ...

This video reveals all 40 species of wild cats, organized by lineage, revealing the fascinating evolutionary history of the Felidae family. Wildcats represent some of the most beautiful and diverse ...

The team compares this event to a genetic fork in the road of evolution that happened hundreds of millions of years ago. One lone single-celled organism, the ancestor of all animals, was traveling ...

A new approach at settling this question, which is critical to understanding the evolution of animals, points strongly to comb jellies – but not all researchers are convinced. All animals alive ...

All kinds of eye facts are covered ... WIRED to guide us through a giant tree of life mapping the evolution of eyes in the animal kingdom: how they work, why they've taken the form they have ...

So which vertebrate animals are evolving ... to some weird deep sea fish, and they all have the same, unique mutations 'An up-tempo version of Darwinian evolution': How a mega freeze in Florida ...

This is evolution’s version of the iconic moment ... but ‘crabbiness’ clearly isn’t optimal in all niches.” Animals Keep Evolving Into Crabs, Which Is Weird Real (Not Synthetic) Crab ...