Surprising facts about squirrels

  Squirrels are quick and curious.  

Here are some interesting facts  -------

1.   Squirrels often forget where they have hide their food  !!!

2.   Squirrel's teeth never stop growing, so chewing is essential.

3.  Not all squirrels live on trees, some live underground.

4.  Fluffy tail of squirrels help them to balance when they jump,  keep them warm and works like signal flag.

5.   Some squirrels can glide through air.

6.  Squirrels can climb down trees head first  !!!!

7.  Tree squirrels don't hibernate.

8. Squirrels use tail flicks and sound to communicate.

Nature's musician bird , It's not Nightingale !!!!

 It is the only bird that produces music with its wings   !!!!

It is  CLUB WINGED MANAKIN.

Most birds sing with their vocal chords.  

But this unusual bird doesn't sing !!!  Instead it uses its wings to create a musical note that competes with musical instruments   !!!!

It is not a noise. It is a rhythm. It is a tone.

This bird vreates a sound by rubbing a pair of specialized wing feathers  together.

This unusually fast wing movement produces a high pitched tone that matches with the frequency of musical note.

ನೆತ್ತಿಯಲ್ಲೇ ಮೊದಲು ಕೂದಲು ಏಕೆ ಬಿಳಿ ಆಗುತ್ತದೆ ???

  ನಮ್ಮೆಲ್ಲರ ಕೂದಲು ದಿನ ಕಳೆದಂತೆ ಬೆಳ್ಳಗಾಗುತ್ತದೆ.

ಆದರೆ ನೆತ್ತಿ ಮೇಲಿನ ಕೂದಲೇ ಮೊದಲು ಬೆಳ್ಳಗಾಗುತ್ತದೆ.

ಯಾಕೆ  ??

1.  ಕೂದಲಿಗೆ ಬಣ್ಣ ನೀಡುವ ಜೀವಕೋಶಗಳು ಕೂದಲಿನ ಬುಡದಲ್ಲಿರುತ್ತವೆ. ತಲೆಯ ಮಧ್ಯದಲ್ಲಿರುವ ಕೂದಲಿನ ಬುಡಗಳು ಬೇರೆ ಭಾಗಗಳಿಗಿಂತ ಮೊದಲು ಈ ಜೀವಕೋಷಗಳನ್ನು ಕಳೆದುಕೊಳ್ಳುತ್ತದೆ.

ಹೀಗಾಗಿ ಇಲ್ಲಿ ಕೂದಲು ಬೇಗ ಬಿಳಿಯಾಗುತ್ತದೆ.

2.  ಸೂರ್ಯನ ಶಾಖ ಮತ್ತು UV ಕಿರಣಗಳು ತಲೆಯ ಮಧ್ಯ ಭಾಗವನ್ನು ನೇರವಾಗಿ ಸ್ಪರ್ಶಿಸುತ್ತದೆ. ಅತಿಯಾದ ಬಿಸಿಲಿನಿಂದ ಕೂದಲಿನ ಪ್ರೊಟೀನ್ ಮತ್ತು ಬಣ್ಣ ನಷ್ಟವಾಗುತ್ತದೆ.

3.  ತಲೆಯ ಮಧ್ಯ ಭಾಗಕ್ಕೆ ರಕ್ತ ಸಂಚಾರ ಸ್ವಲ್ಪ ನಿಧಾನವಾಗಿ ಆಗುವುದರಿಂದ ಕೂದಲು ಬೇಗ ಬಿಳಿಯಾಗುತ್ತದೆ.

4. ನಮ್ಮ genetics ಕೂಡ ಕಾರಣ.

5.  ಅತಿಯಾದ ಒತ್ತಡದಿಂದ ತಲೆ ಮೇಲಿನ ಸೂಕ್ಷ್ಮ ಜೀವಕೋಶಗಳು ಘಾಸಿಗೊಳಗಾಗಿ ಕೂದಲು ಬಿಳಿಯಾಗುತ್ತದೆ.

6.  ಹಾರ್ಮೋನ್ ಅಸಮತೋಲನವೂ ಒಂದು ಕಾರಣ.

Is yawning contagious ??

YES  .....!!!! 

Yawning is highly contagious ......!!!

The likelihood of yawning increases 6 fold , when we see or hear someone yawning  .... !!!

WHY IT HAPPENS  ??

There are several theories 

1.  It is a type of empathy.  We are likely to catch a yawn from a friend or a family member than a stranger  !!!

2.  The " mirror neurons " trigger automatic imitation of someone's yawning.

3.  If group of people in warm climate, they may yawn contagiously to stay cool.

We don't have to even see a yawn to catch one  !!!

Simply reading about or thinking about yawning is enough to trigger the reflux ....!!!

Why do we yawn ???

  There is no single scientific consensus on why we yawn !!!

It is generally  considered as involuntary reflex controlled by hypothalamus in brain that serves both physiological and social functions.

For years , people believed we yawned to  get more oxygen or expel carbon dioxide.

But breathing more oxygen does not change how much a person  yawns !!!

Popular theory suggests that yawning helps regulate body temperature. The stretching of facial muscles increase the blood flow to brain.

Contagious yawning is associated with empathy.  People who are more socially attuned are more likely to catch a yawn from someone they are close to  !!!

Yawning does not appear in new born babies.

It appears in chimpanzees, dogs, cats, wolves, lions and one species of parrot.