Biological Facts

Interesting Biology Facts 

Biology talks about life and only life. Everything living around us is related to the study of biology. Whether it is a microorganism or a massive animal, they all fall under biology. Now, every living species inculcates different biological systems and works differently. There are some mind-blowing biological facts that we didn't even know but actually exist in nature. These interesting biology facts will help you to gain a better knowledge about the subject and the environment that surrounds us. This article outlines all the interesting biology facts that you need to know and understand how the living world works. 

Supersized Molecules

This comes under biology science facts where you might know that almost everything in this world is made up of millions of molecules. Though the size of these varies from simple to complex types of molecule. A simple molecule can be an oxygen molecule whereas a complex molecule is an organic structure. But did you know where the biggest molecule resides? Well, the interesting biology fact is that it is inside you! Yes, the chromosome is the biggest molecule.  

Is The Appendix Useful?

Nobody liked the appendix, right? In biology science facts it is considered as a body part that lost its functions many years ago and all it does is get infected from time to time, give you pain and cause appendicitis. This biological fact will tell you how important the appendix has become. Recently, it was discovered that the appendix is a bacterium that can be useful for your digestive system and its functioning. The appendix helps to get relief from the tension of the hectic bustle of the gut. The amazing facts on biology are that it keeps the gut’s bacterial residents beaten up by breeding with them.

Well, maybe after learning about this biological fact we will dislike it a little less.

The Goosebumps Evolution

This is an interesting biology fact that will tell you about the Goosebumps evolution over the years. Goosebumps occur when the muscles near each hair on our body tense up and stand erect. 

But in furry animals, this has a different reaction which is not a basic biology fact. When mammals bungle up their fleece when threatened, they look bigger and very dangerous.  

Australian Flower Spider Eats Their Mother When Lacking Food

Biology science fact mentions cannibalism is predominant in many animals and especially spider species. This interesting biology fact is true and usually, cannibalism is seen during sexual encounters. But a certain type of Australian Flower spider breed eats their mother when they do not find food.

It is the mother who sacrifices herself and encourages her young kids to attack and feed on her body. This biological fact gave you Goosebumps, didn't it? 

Eyelash Invaders

Now, this Biological fact might creep you out a little bit but depending on your age, it is very much possible that you have eyelash mites. These are tiny creatures that reside on old cells on the skin and the natural oil which is sebum formed by the human hair follicles.  

Amazing facts on biology says they grow almost transparent and possibly a third of a millimetre. You cannot see them through your naked eye. Put your eyelash hair under a microscope and see what you find. This is a biology science fact and therefore almost half of the world population has these.

Snakes Never Close Their Eyes

One of the amazing facts on biology tells you about how snakes never close their eyes. Even while sleeping, they have their eyes open. The basic biology fact is that snakes do not have eyelids naturally. They aren’t born with one. They just have eye scales that will cover their eyes which you must have seen in many animal planet's shows. They shed their eye scales when they shed their skin. 

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These were just some interesting facts about biology. Biology as a study is vast and learning amazing facts on biology is endless. You can never know too much when it comes to biology. The human species is evolving every day and with it so are the facts.


When you learn facts about cells for biology, it is a vast subject. The basic biology fact is that all living things are made up of cells. These cells are made up of organelles and proteins where its main function is to organize. Motor cells are the longest cells in the human body.  

Biology facts about cells tell us that there are 75 to 100 trillion cells in the human body. Usually, this comes under the top 5 facts about biology when studying.

Fun Fact

There are many fun facts in biology, some are: 

  • The female egg is the largest cell in the human body and the male sperm is the smallest.

  • As compared to the day, the brain is highly active during the night time.

  • In the span of your life, you produce saliva, which is equal to two Olympic sized swimming pools, it is a true biology science fact.

FAQ (Frequently Asked Questions)

1. Why do Babies have More Bones than an Adult Human Being?

The answer to the question is intriguing indeed. We all know the basic biological fact that a human body has 206 bones, but the babies have more bones than an adult. A baby has 300 bones in its body. The reason behind this is that babies have flexible cartilage which is a strong tissue softer than a bone in their body and as they grow with time this cartilage gets stronger and hardens itself thus turning into a bone. The interesting biological fact is that some bones combine and fuse. Now you know why babies have more bones than adults.

2. How do Baby Birds Get Oxygen Inside Their Eggs?

This question has been a mystery for several years and is still not known by many people all around the world. Amazing facts on biology tells us about how bird babies get oxygen even inside the egg. As the baby grows with time it breathes in the oxygen that is present in the air sack and gives out carbon dioxide. The eggshell is not an opaque surface which it looks like. There are tiny pores that allow the carbon dioxide to leave the shell and let the oxygen enter. A basic biologic fact is that a chicken egg comprises more than 7000 pores on the shell.