A Moment of Science: Audio

For years, scientists have been trying to figure out the nature of the relationship between cleaner fish and their clients.

If you've ever rubbed your eyes and seen faint sparkles of light, you have demonstrated a surprising fact of sensory physiology. Depending on how hard you rub–and you should always be gentle–you may see glowing patches or even faint colors.

Do you remember seeing some blank squares at the end of the periodic table of elements? Those blanks were for elements we knew existed, but hadn't yet observed.

DId you know your brain has an 'alerting system'? When it detects a change, it can trigger eye and head movements to gather more information.

An organism's niche is what it needs to grow and survive. One way to coexist is to use different resources, also known as niche partitioning.

The same human capacity for making sense out of the jumbled data of experience also makes us easily fooled.

Ever wonder why there are so many dead snakes in the road? Find out on this Moment of Science.

Some sources have claimed that 90% of our cells are non‑human. But is that truly accurate? Cal Tech believes that estimate might be way off.

Fahreinheit is based on Earth's range temperatures where the median falls at zero degrees.

The ocean is increasingly absorbing CO2 from the atmosphere, raising the water's acidity and endangering sea life.

Cats learned the pawing motion sometimes called "making biscuits" as kittens trying to nurse.

Scientists have developed an artificial pancreas that helps diabetics control their insulin levels with their smartphone.

Identical twins aren't a supernatural wonder, though they are a rare breed.

A black hole has such a powerful gravitational pull that it sucks up everything nearby, including light.

Hypnotics are pills that are primarily used to induce sleep.