Scientists have discovered that both bony and cartilaginous fish develop their appendages via a shared mechanism -- the mechanism is also observed in land-dwelling vertebrates such as mice. They found ...

The fossil record shows that cartilaginous fish evolved at least 420 million years ago, and rapidly diversified to become one of the most species-rich groups of predators on Earth. While they have ...

What do we have in common with fish, besides being vertebrates? The types of joints we (and most vertebrates) share most likely originated from the same common ancestor. But it’s not a feature that we ...

One quarter of the world's cartilaginous fish, namely sharks and rays, face extinction within the next few decades, according to the first study to systematically and globally assess their fate. One ...

A new study in Genome Biology and Evolution reveals that egg yolk proteins may have been co-opted to provide maternal nutrition in live-bearing sharks and their relatives. While giving birth to live ...

Scientists have identified Rhinochimaera costaricana, a new long-nosed chimaera from deep Pacific waters off Costa Rica. The ...

Washington D.C. [USA], Jan 1 (ANI): Humans may not be capable of growing back severed limbs but just like salamanders and zebra-fish, they too can heal their damaged joints. In a study published in ...