Evolution has come a long way throughout history. A breakthrough study reveals that human fingers may have evolved from fish fins as the two came from a common cellular origin.
How did skates and rays develop their unique wing-like fins? Researchers from the University of Chicago recently revealed the animals altered their body structure to live on the ocean floor, and to do so they relied on repurposed genes.
Recent studies on catsharks explain how fish evolved to live on land in the form of tetrapods. The missing link was a key regulator protein, researchers found.
After much public outcry, a major Singapore Airline has agreed to stop shipping shark fins.