Secret of a happy marriage!

 A man and a woman had been married for over 60 years.

They had shared everything, talked about everything, and had never hidden anything from each other, except for a small shoebox that the old lady kept on top of the closet.

She had told her husband never to open it or ask about it. All these years, the man had never thought about that box.

One day his beloved wife became very ill and the doctor said she would not survive. 

To put things in order, the man brought the box to his wife's bedside. She agreed that it was time for him to see its contents.

When he opened the box, he found two handmade woolen dolls and $95,000 in cash. 

Surprised, he asked his wife about it. She said, “When we were getting married, my grandmother taught me the secret of a happy marriage: never argue. She told me that if I ever got angry with you, I should keep quiet and make a woolen doll."

The man was so moved that he could barely keep from crying. There were only two dolls in the box. That meant she had only gotten angry with him twice in all their years of living and loving together. He was over the moon.

"Honey," he said, "that explains the dolls, but what about all this money? Where did it come from?"

"Oh," she said, "that's the money I earned selling the dolls."

Why animals give birth to varying numbers?

Animals give birth to varying numbers of offspring based on their evolutionary adaptations to their environment, including factors like predator threats, parental care, and the energy required to raise young.   

Species with high predation often produce many small offspring to increase the chances of survival, while species with high parental care tend to have fewer, larger offspring that require more investment to raise successfully.  

Key points about why some animals have multiple offspring while others have only one: 

Predation pressure:
Animals with high predation risk, like fish or frogs, lay large numbers of eggs to ensure some survive to adulthood, as many eggs will be eaten by predators. 

Parental care: 
Animals that provide extensive parental care, like mammals like elephants or humans, usually only have one offspring at a time because raising one young requires significant energy and resources. 

Offspring size: 
Larger animals often have fewer offspring because larger babies require more energy to gestate and nurture. 

Life span: 
Species with shorter lifespans may produce more offspring at once to maximize their reproductive output in a shorter time frame. 

Examples: Many offspring:
Mice, rabbits, frogs, fish - These animals produce large litters of small, relatively helpless young because they face high predation and don't provide much parental care. 

Single offspring: 
Elephants, whales, humans, giraffes - These animals typically have one large offspring at a time because they invest heavily in nurturing their young.  Why do these animals have so many babies, while animals like elephants and whales usually only have one at a time? One of the factors that influences litter size is lifespan. Shorter-lived animals that won't survive to see their offspring grow will typically have more offspring at once.