Table of Contents Phytoplankton produce oxygen through photosynthesis, allowing organisms like us to breathe and survive. When the earth came into existence 4.55 billion years ago, it was hardly a planet that could host life. The atmosphere lacked oxygen and was largely made up of carbon dioxide. The temperatures weren’t […]

Summertime, Credit; canva.com What causes the skin to tan? After a fun day at the beach, you come back home burning red. You should’ve listened to your mother when she told you for the hundredth time: don’t forget to wear sunscreen. The largest organ of the body Have you ever

Table of Contents The Medical Power of a Dog’s Sniff You probably already know that dogs have an excellent sense of smell. As soon as you open a tin of biscuits, your pet dog comes running! Humans have about 5 million scent receptors, but dogs have 220 million. Their sense

Table of Contents What are parasites? There is a whole range of organisms that live as . This means that they live off another organism. We are familiar with some common parasites. These include ticks, fleas, and worms in our guts. There are some parasites that control the brain of

Ants make complex, fascinating decisions—how do they do this with tiny brains? Table of Contents How big are ant brains? https://youtu.be/rhbTlaWS_Iw A nervous system is what helps all animals make decisions, sense their environments, and move around. The basis of a nervous system is nerves, or nerve cells. Nerve cells

Microbes are the tiny microscopic organisms that exist all around us. They are called microbes, because most are only visible through a microscope although some can be seen by the naked eye.  Their fascinating world includes many different types of microbes with , , , and as the main categories