Fun facts in Biology

len Alfred Ajibola - 22nd November, 2021 @ 11:04 AM

Topics in Biology

Contents of the scrotum: Epididymis, Vas deferens, Spermatic cord and Cremaster muscle Fun facts in Biology

Academic Questions in Biology

Please check out our Questions and Answers here

In a food chain, the primary consumers are classified under trophic level  _____.

  • A. Zero

  • B. One

  • C. Two

  • D. Three

  • E. Four

  • F. Five

Cold blooded animals are referred to as _____.

  • A. Homeotherms

  • B. Endotherms

  • C. Poilokitherms

  • D. Ectotherms

  • E. Thermotherms

  • F. None of the above

All reptiles are vertebrates.

  • A. True

  • B. False

Facts in Biology:

Biology is an academic subject taught in schools. It is defined as the study of life. As we already know, life in itself is filled with numerous amazing and fun facts. 

Below are some fun facts in biology:


  • Your nose and thumb are equal in length.

  • During immunization, germs are introduced into the baby’s system.
    Please read more on immunization to here

  • Cold weather improves the brain's retention ability.

  • A dark skin will wrinkle less in comparison to a light skin.

  • The opening in the mouth terminates with the anus. The length between both openings is about 30 feet long.

  • Your brain works more when you are asleep.

  • The left part of the heart is more powerful than the right side.

  • A baby in the womb reacts to a loud music by kicking the mother.
    Please read on interesting facts in biology here

  • You cannot be physically balanced without your inner ears.

  • The saliva you will produce in your lifetime can fill up two swimming pools.

  • Some of your internal organs including your brain cannot feel pain.

  • If apes and koalas committed a crime, they can be tracked and caught because they have a unique finger print just like humans.

  • Babies start dreaming from the womb.
    Please read motivational quotes that has transformed lives here

  • Blondes have more hair.

  • Newly born cries without tears between the first 6 weeks.

  • The thigh bone (femur) is the longest bone in the human body and accounts for one quarter of our height.

  • Some scientists are of the opinion that the brain can hold up to 1000 terabytes of data.

  • The human brain accounts for just 2% of our body mass. Regardless, it takes up the most oxygen inside the body (about 20% of oxygen).
    You can read the facts on red blood cells and hemoglobin here

  • The smallest frog has the size of a fly. It’s called the little grass frog.

  • When a pregnant mother has heart attack, the fetus in her womb donate some of its stem cells to help rebuild the damaged heart tissue.

  • The main purpose of the eyebrows is to prevent sweat from getting into the eyes (and not necessarily for beautification).

  • At the age of 18, the human brain stops growing.

  • The smallest bone in your body is called the stapes. It is found in the middle ear.

  • The fastest moving part of the human body is the eye.

  • The eyeball is the fastest healing part of the human body.

  • The total length of human blood vessels would circle the earth two and half times.
    Please read arteries here

  • About 100 billion platelets are produced daily. Without them, a bleeding will not stop.

  • A drop of blood contains about 250 million cells.

  • The middle finger has the fastest growing nail.

  • The skull is made up of 22 different bones.
    Please read on bones here

  • The left half of your brain controls the right side of your body while the right half of your brain controls the left side of your body.

  • A human cell is very small and even microscopic but the DNA present inside of it is 6 feet long.

  • There is no difference between the male and the female embryo in the womb between the first 6 weeks of life.

  • A person blinks the eye over 11,500 times in a single day.

  • Certain jelly fish can trigger a process that turns them back into a younger version of themselves. They can do this as much as they want.

  • 50% percent of the human DNA is the same as the DNA of a banana.

  • Thanks to marine plants and algae because they provide over 70% of oxygen to earth.
    Please read on the atmosphere here

  • Matured red blood cells have no nucleus.

  • 25% of human bones are present on their feet.

  • Your sense of hearing is reduced whenever you over-eat.

  • The liquid inside young coconuts can be used as a substitute for blood plasma.

  • The higher your intelligence quotient, the more dreams you will have.
    You can read amazing facts on Abraham Lincoln and John F. Kennedy here

  • We cannot smell when we are sleeping.

  • You actually hear when you are asleep; the brain just chooses to ignore the sounds.

  • The muscle of your butt is called the gluteus maximus. Interestingly, it appears to be bigger in females.

  • The space between your eyebrows is called glabella.

  • One in every 20 persons has an extra rib and majority happens to be men.

  • Elephants feel emotions like compassion, joy and anger. They even bury and mourn their dead.

  • Some plants feed on insect. They are called carnivorous or insectivorous plants.
    Please read on the differences between plants and crops here

  • An ostrich lays the world’s biggest egg. Its size is equivalent to 30 chicken eggs.

  • The average person passes out gas (flatulence) about 14 times a day.
    Please read on bloating and factors that causes it here

  • After the age of 18, some of the brain cells start dying and can never be replenished.

  • You lose about half a litter of water daily through breathing.

  • The kind of cells that make up the vagina are the same as those that make up the mouth.

  • You cannot breathe properly without your ribs.

  • Your toe prints are as unique as your finger prints.

  • The nose is like an air conditioning system. It warms cold air, cools hot air. Also, it filters impurities from the air.
    See more amazing facts in biology here

  • Like finger and toe prints, we also have tongue prints.

  • The only bone that is not attached to another bone in the human body is the hyoid bone. This bone is found in the throat and no joint is present around it.

  • An attempt to eat and swallow at the same time can result to death.

  • The bacteria inside your mouth is more than the world’s population.

  • The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.

  • The largest organ inside your body is the small intestine. It is 20 feet long.

  • Generally, the skin is the largest organ on your body.

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 7 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.

Amazing facts in Biology

Cockroach is the fastest land animal on six legs

Laughing ape - Len Academy

Like humans, all apes laugh when tickled

Ostrich eye and brain - Len Academy

An ostrich's eye is bigger than its brain

The upper front teeth are missing in giraffes. Meanwhile, like an adult human, a fully grown giraffe has 32 teeth but most are positioned at the back of their mouth


For a thing to be considered living, it must possess all the basic characteristics of life. These include:

  1. Movement

  2. Respiration

  3. Nutrition

  4. Irritability or Sensitivity

  5. Growth

  6. Excretion

  7. Reproduction

  8. Death

  9. Adaptation

  10. Competition

Please read the explanations on all the basic characteristics of life here

During strenuous exercises like sprinting or running, your body may actually work in the shortage of oxygen. During this time, your body owes oxygen (called oxygen debt) and it must be replenished or repayed after the exercise is stopped. This is why you breathe excess of oxygen after you stopped the exercise.

This is the concept of anaerobic respiration