Cosmoselachus exhibits predominantly shark-like characteristics, yet possesses cartilaginous structures reminiscent of ...

Turtles are reptiles of the order Chelonii or Testudines characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield. The earliest known turtles date ...

Sharks, glorious sharks. One of the trinity that makes up elasmobranchs, a group of cartilaginous fish that includes sharks, ...

Before we dive in deeper, it’s important to clarify that turtles are not dinosaurs. This common misconception stems partly ...

Sharks have been around for hundreds of millions of years, appearing in the fossil record before trees even existed. But what did they evolve from, are they 'living fossils', and how did they survive ...

Important features were also clearly visible in some of the fossils, such as eye sockets, fins, tails and the outlines of some organs and cartilaginous structures. The researchers found that the ...

Learn about the time period that took place 416 to 359 million years ago. 4 min read When the Devonian period dawned about 416 million years ago the planet was changing its appearance. The great ...

The rearing of farmed animals today is dominated by industrialized facilities known as concentrated animal feeding operations, or CAFOs (often referred to as “factory farms”) that maximize profits by ...

For decades, scientists dismissed transposable elements, also known as transposons or “jumping genes”, as useless “junk DNA”. But are they really? The early speculations of both McClintock ...

What do phylogenetic trees illustrate? These diagrams don't just organize knowledge of biodiversity - they also show us that living species are the summation of their evolutionary history.

A 75-year-old male patient presented to our urology department due to unintentional weight loss (10 kg/2 months). Previously performed diagnostic imaging (CT) had shown a pelvic mass with tiny ...

The Midnight Diners is a regular collaboration between KQED food editor Luke Tsai and graphic novelist Thien Pham. Follow ...