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Posts tagged biology

September 20, 2019

 

Grounded, With Wings

According to natural selection, species evolve in ways that better enable them to survive and pass on their genes.  But sometimes evolution takes what may appear to be odd and unexpected turns.  Take, for example, birds that have wings but can’t fly.  What can explain this strange phenomenon?

September 19, 2019

 

The Extinction Crisis

According to many scientists, we are in the midst of a major mass extinction catastrophe right now. In 2019 a United Nations backed scientific panel concluded that the rate of species extinctions happening right now is already tens to hundreds of times higher than the average over the past ten million years.

September 18, 2019

 

The Painless Lives Of Mole-Rats

Naked mole-rats are resistant to certain kinds of pain, like the burning sensation caused by acid and capsaicin, the compound that gives chili peppers their heat. But they do feel the painful effects of a substance called allyl isothiocyanate, which is what gives wasabi its burn.

September 13, 2019

 

Why Can’t We Remember Our Dreams?

Perhaps you’ve heard that the average person dreams four to six times each night. But did you know that most of us are unable to recall 90% of our dreams? Today on A Moment of Science we ask why it is that we forget most of our dreams.

September 9, 2019

 

Giraffe Nurseries

Humans aren’t the only species that send their children to nurseries in order to play, learn and be protected. Giraffes, in fact, sometimes leave their calves in a sort of nursery.

September 6, 2019

 

NASA’s Twin Study

Mark and Scott Kelly are identical twin brothers who are both NASA astronauts. In 2015, Scott Kelly was launched on a record 340 day mission to the International Space Station.

September 5, 2019

 

Are Flip-Flops Good For You?

According to podiatrists, flip-flops provide no arch support and cause the foot to roll inward. And, because the only thing keeping flip-flops on feet is that little rubber thong, you end up gripping them mainly with the toes.

September 4, 2019

 

The Amazing Walking Sticks

Today’s episode is about walking stick insects. You probably know them for their curious appearance. They resemble the twigs of the plants they feed on.

September 3, 2019

 

The Health Consequences Of Parenting

Research conducted at Lorna Linda University Health shows that children who grew up with parents who had a “warm” parenting style have an advantage over children who grew up with parents who had a “cold” parenting style when it comes to health and aging.

September 2, 2019

 

Assassin Bugs

The assassin bug eats other insects. It has raptorial forelegs similar to a praying mantis, meaning it’s covered in teeth-like extensions used for grasping prey.

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