Even Charles Darwin was puzzled by the evolution of the vertebrate eye. New research suggests that it traces back to a cyclopean invertebrate with a single eye atop the head.

Some animals in the world possess the ability to regenerate tissues, allowing them to regrow parts of limbs or entire limbs ...

We’re only in the early stages of 2026, and one massive change from last year may have already occurred: there may actually ...

Researchers recently discovered that the sea lamprey, a modern representative of ancient jawless vertebrates, fights invading pathogens by generating up to 100 trillion unique receptors. These ...

A harlequin poison dart frog (Oophaga sylvatica) is pictured at the Tesoros de Colombia (Treasures of Colombia) sustainable farm in Nocaima, Cundinamarca department, Colombia, on July 9, 2024.

A new study focused on cryptic species—animals that look the same but are genetically different—found that they’re more widespread among vertebrates than we previously thought.

Using the largest and most informative molecular phylogenetic dataset ever analysed, evolutionary biologists were able to construct a new phylogenetic tree of jawed vertebrates. This new tree resolves ...

The findings suggest that the appearance of the vertebrate head skeleton ‘did not depend on evolution of a new skeletal tissue, as is commonly thought, but on the spread of this tissue throughout the ...

Nov. 21 (UPI) --The research is clear, the physiological complexity that makes modern humans -- and other mammals -- unique from simpler species is a product of gene regulation, not genet quantity.

In the limestone ranges of Western Australia’s Kimberley region, near the town of Fitzroy Crossing, you’ll find one of the world’s best-preserved ancient reef complexes. Here lie the remnants of ...