Where Did Viruses Come From?
Viruses are not living things - so where did they come from? Scientists have proposed three different hypotheses.
Why Don't Fish Freeze in Cold Arctic Waters?
Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.
Why Scientists Believe in Evolution
Scientists have accumulated so much evidence in the theory of evolution that it is one of the most widely-accepted theories in science.
Why are Guppies so Diverse?
Different members of a species can have different traits. You can see this in a species found at your local pet store - guppies!
Talking Trees: How do Trees Communicate?
Humans use the internet to communicate. Similarly, trees use a complex underground network of fungi. These relationships are examples of symbiosis.
Should Scientists Clone Extinct Species?
Cloning makes it possible to bring extinct species back to life. But is that a good idea?
Natural Selection in Your Backyard
A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.
How to Find a Mate When You Smell Like Dung
Some dung beetles use alternative reproductive tactics to increase their chances of finding a mate. Learn what this tells us about evolution and biodiversity.
How did dinosaurs leave fossils behind?
Using a toy dinosaur and some plaster of Paris, learn how dinosaur footprints could become fossils.
Guppies, Guppies Everywhere!
How do different populations adapt to their environment? Let’s explore this concept through guppy speciation.