Writing good science exam questions is hard. Getting the wording right, making sure that what you are asking about is clear, pitching the question at the right level, takes time, lots of experience and…
Australia is world famous for its venomous critters, including its many highly venomous snakes. The snake that holds the popular title of “world’s most venomous” is the inland taipan (Oxyuranus microlepidotus…
Evolution of life on Earth began about 3.5 billion years ago but it has not been a constant or continuous process. During the middle years of Earth’s history (1.8 billion to 800 million years ago), evolution…
Despite lack of evidence or logic, some people would like kids to be taught as fact that the Earth was created by a supernatural being some 6,000 years ago. That is the case put forth by Christian Schools…
It’s one of the most tantalising questions in evolutionary biology: how did our aquatic ancestors first move from water onto land? Thanks to research published today in PLOS Biology, new light has been…
Worker ants are a funny old bunch, of many shapes and sizes. But they tend to get bigger and smaller much more often than evolving entirely new shapes, according to a new study. While most animals juggle…
One hectare of land in a tropical forest can hold 650 tree species – more than in all of Canada and the continental US. This has left biologists baffled for decades. Now, with advances in data analysis…
Why help another when you can help yourself? Cooperation is very common in nearly all life, from genes and cells to humans and other animals. However understanding why can be difficult: being selfish seems…
New research on invasive species has cast doubt on the prevailing theory developed by Charles Darwin, giving us a new way to predict and model species when they are introduced. Invasive animals such as…
On a TV show or in a movie, if a guy and a girl are at a party and one approaches the other to strike up a conversation, chances are that it was the guy who approached the girl. That is because we have…
We all know the story: Once upon a time there was a young girl who took a walk through the woods to visit her grandmother, carrying a basket of goodies. When she arrived she found her granny ill in bed…
Penguins are a remarkable group of flightless birds. We tend to think of them as Antarctic birds, but they actually inhabit an extremely diverse range of habitats from subzero Antarctic coastline to the…
A new study by Rebecca Pian, Mike Archer and Sue Hand, published today in the Journal of Vertebrate Paleontology, describes the tooth of a new, giant species of extinct platypus. The fossil history of…
There was no concept of biological species before the late 17th century in natural history. So why did we get a concept of species in the first place? What is “species” needed for? The answer is that the…
Hummingbird-pollinated flowers evolved perfectly to suit the bird’s bill shape, its colour vision and even its taste buds. This is the beauty of co-evolution, where two species interact so closely that…
The often remade song “He Ain’t Heavy… He’s My Brother” probably owes a good deal of its enduring popularity to its depiction of the loving familial bond between two siblings - one aiding the other despite…