A bizarre 500-million-year-old “worm with legs” has finally found its rightful place on the evolutionary tree of life. Fossils of Hallucigenia look so odd that scientists couldn’t make head or tail of…
Spectacular transitional fossils, many from northern China, provide overwhelming evidence that dinosaurs evolved into birds and thus didn’t all perish when the deadly meteorite struck at the end of the…
That starling at your birdfeeder? It is a dinosaur. The chicken on your dinner plate? Also a dinosaur. That mangy seagull scavenging for chips on the beach? Apart from being disgusting, yet again it is…
People like to say that we cannot witness evolution because it occurs over timescales immensely greater than our lifetime. That’s incorrect. We can witness evolution all we want, in our lifetime, by watching…
Fifty years ago this month, evolutionary biologist William Donald Hamilton published a solution to one of biology’s most enduring mysteries: why does altruism exist? Altruistic behaviours are those where…
Ancient remains have confirmed that the face and jaw evolved before the rest of the skull in Neanderthals and early human ancestors. Research conducted at the Sima de los Huesos (Pit of the Bones) archaeological…
One of the most important questions we can ask – and one that continues to take up much of the time of scientists, philosophers and the religious minded alike – is why are humans so different to the rest…
For a biologist like me, the interesting questions about religion have always been where did it come from and why did it evolve? I taught evolutionary biology in a Catholic University in the most Catholic…
About 6,000 years ago, a bacterium underwent a few genetic changes. These allowed it to expand its habitat from the guts of mice to that of fleas. Such changes happen all the time, but in this particular…
Eyes and wings are among the most stunning innovations evolution has created. Remarkably these features have evolved multiple times in different lineages of animals. For instance, the avian ancestors of…
The Conversation organised a public question-and-answer session on Reddit in which Jeremy Pritchard, senior lecturer in biology at the University of Birmingham, explained the science of evolution and tackled…
In a recent paper in Nature, we described a strange marine animal, called Tamisiocaris. They were giants that swam in the oceans over 500 million years ago. They had strange looking appendages on their…
Akshat Rathi, The Conversation and Angela White, The Conversation
Zebras’ stripes have baffled biologists since Charles Darwin. Many hypotheses have been proposed regarding their purpose but, despite hundreds of years of study, there remains disagreement. In an attempt…
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…