In February 2020, Ben Collins, 24, said doctors found a lump on his back, which was itchy and red and looked like a “gnat ...

The 550-million-year-old Quaestio simpsonorum is the first fossil to show a definitive left-right asymmetry, an important ...

For Caetano-Anolles, co-evolution from a single common ancestor seems to be the most likely origin of viruses and bacteria.

Meanwhile, some people might notice they can no longer tolerate the cold—which is one sign of hypothyroidism, or an ...

When I reached the gravel bar the adrenalin was pumping and my body was racked with anticipation of battling the giant fish. Opening the knife, I moved into position and crouched over the edge of ...

This little lizard can fire blood up to 5 feet from its face, has spiky horns and inflates itself to choke predators.