Ancient giant octopuses may have been smarter, bigger, and fiercer than expected

Modern octopuses are known as escape artists of the sea, soft-bodied, elusive, and almost impossible to pin down. But a new fossil discovery is challenging that familiar image. Hidden inside ancient rocks, scientists have found rare clues that suggest the early story of octopuses may have been far more dramatic than anyone expected.

Can working out improve brain health and memory? Here’s what to know

We’ve all experienced that post-workout mental clarity - that feeling of being a bit "sharper" after hitting the gym or going for a run. But what is actually happening inside our heads to cause that?

Research gives us an unprecedented look into the brain right after physical activity, and the findings might just change how you view a quick sweat session.