Take a picture for me!  

Flying in form
Geese often fly in a V formation on a long flight. The bird in front does much of the work needed to fly through the air, and the other birds benefit from this. When the bird in front tires, another takes its place as leader. It is a little like walking in freshly fallen snow. This is hard work, but if you can walk in already made footprints, it is less difficult to forge your way through the heavy snow.

Squirrel 

Spring comes! 

hello 

dream... 

I'm tried 

Do dogs and cats have good memories?
Dogs do have long-term memories, especially for those whom they love. Cats have a memory for things that are important to their lives. Some cats seem to have extraordinary “memories” for finding places. Taken away from their homes, they seem able to remember where they live. The key to this “homing” ability could be a built-in celestial navigation, similar to that used by birds, or the cats’ navigational ability could be attributed to the cats’ sensitivity to Earth’s magnetic fields. When magnets are attached to cats, their normal navigational skills are disrupted.

Do all cells have a nucleus?
Red blood cells are the only cells in the human body that do not have a nucleus. As a result, they cannot divide and so are produced in bone marrow at the rate of 140,000 per minute. They exist in the body’s circulatory system for about 120 days before being destroyed in the liver.

How much DNA is in a typical human cell?
If the DNA in a single human cell were stretched out and laid end-to-end, it would measure approximately 6.5 feet (two meters). The average human body contains 10 to 20 billion miles (16 to 32 billion kilometers) of DNA distributed among trillions of cells.

Biorhythms
There is little, if any, scientific support for this theory, which claims there are three precise cycles that control human behavior. These are: a physical cycle of 23 days; an emotional cycle of 28 days; and an intellectual cycle of 33 days; Hazardous critical days are proposed to occur when two or more cycles intersect.
In contrast, biological rhythms such as activity cycles, feeding cycles, and sleeping cycles, are well-known. They vary from individual to individual and most are tied to the 24 hour rotation period of the Earth. Biological rhythms are real; biorhythms are a hoax.

Biotechnology
We use biotechnology to alter living things. It gives us the power to create new animals, plants, foods, medicines, materials and even machines. People have used biotechnology for thousands of years to slowly breed new plants, animals and microorganisms that make cheese, bread, beer, yogurt and wine. Today, modern biotechnology could speed up this breeding process by altering the genetic material deep inside living cells. Scientists have already created bright blue carnations, and tomatoes that ripen on the vine without getting mushy. Biotechnology’s potential is enormous. We can even use bacteria grown in laboratories to digest oil to clean up oil spills. The next hundred years will be an age of exciting “bio-inventions”.

Sleep2 

Sleep1 

How is the age of a dog computed in human years?
When a dog is one year old, it is about 15 years old in human years. At age two it is about 24, after ago two, each additional year is multiplied by four.