Scott Dutfield

Reference Discover more about the season where the leaves turn red and the temperature drops.

Reference What are biofuels and how are they made?

Reference Springtime brings warmer temperatures and a rebirth as nature reawakens.

Reference Cryptocurrencies aren't just alternatives to government-issued forms of money. Most of them are designed to be very different.

Reference North American brown snakes are nonvenomous, unlike the Australian variety, which is among the most venomous in the world.

Reference Tonsil stones are accumulations of bacteria and debris in the crypts of some people's tonsils. This problem is not dangerous and is usually easily treatable.

Reference The term “amoeba” refers to simple eukaryotic organisms that move in a characteristic crawling fashion.

Reference Onions have layers of health benefits and are packed with nutrients. Some of the nutrients in onions may help promote heart health, reduce inflammation and reduce the risk of cancer.

Reference The pros and cons of installing domestic solar panels

Reference Paramecia are single-celled protists that are naturally found in aquatic habitats.

Reference The sympathetic nervous system activates the "fight-or-flight" response, quickly readying the body to handle dangerous or stressful situations.

Reference Broadly speaking, biology is the study of life.

Reference Humans have invented six devices that combine to make work easier. These six simple machines are the wheel and axle, the lever, the inclined plane, the pulley, the screw and the wedge.

Reference Learn about the many differences between prokaryotic and eukaryotic cells and how they evolved.

Reference They're a popular feature of many gyms, and can help with overall fitness, but are exercise bikes good for losing weight?

Reference Thousands of years ago Britain was connected to mainland Europe, but during an ice age Brexit a tsunami tore them apart.

Reference They might look cute, but the toxins from a poison dart frog can be strong enough to kill several humans.

Discover what separates alligators and crocodiles and how you can tell them apart.

They're not as famous as Darwin or Curie, but these heroes made our lives better through groundbreaking achievements.

Some of the world's strangest species can be found down under, from dolphin-tailed sea cows to mysterious marsupial moles.

The death of the dinosaurs was just one of five global events that saw millions of species wiped out. How do these events happen? And how can we stop it happening again?