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A Moment of Science

Posts tagged chemical signals

August 23, 2017

 

Aging makes the brain less able to initiate and sustain sleep.

Goodnight, Sleep

As early as their 20s, people can experience a decline in the efficiency of their sleep receptors.

February 10, 2017

 

Deer saliva sends a chemical signal to trees' cells that increases their production of salicylic acid.

Deer Attack

Trees know when someone or something is eating them.

December 24, 2015

 

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A Switch for Aging

Scientists discover the switch that turns on the aging process.

August 28, 2013

 

Have you ever seen a pirate perch in the wild?

All About Pirate Perch

Pirate fish are not only ravenous predators, they appear to be masters of deception.

September 6, 2007

 

Lose an Arm? Grow a New One!

Yes, kids under eleven have been known to regenerate fingertips. Learn more on this Moment of Science.

November 19, 2004

 

Can Fish Smell?

Do fish have olfactory senses? How do they smell without a "nose?" Find out on this Moment of Science.

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