A new analysis of an extinct giant kangaroo skull suggests it was adapted to eat tough, woody material - a feeding style not found in any modern marsupials.
A thought experiment from Richard Dawkins' book The Selfish Gene turned out to be a more realistic explanation for altruism than he expected.
When seconds stretch into minutes.
The Amazon will take a lifetime to recover from this year's fires – if it ever does.
Current plans for lunar exploration may end up destroying ancient, genetic samples from Earth that have ended up on the moon.
_Hydrophis cyanocinctus_ is the only sea snake species known to breathe through the top of its head, using a special arrangement of blood vessels in much the same way as fish gills.
If you go by editorial cartoons and T-shirts, you might have the impression that evolution proceeds as an orderly march toward a preordained finish line. But that's not right at all.
Reconsidering an old ecological conundrum comes up with a new perspective on migration, contact and trade in the Australia and Asia-Pacific region.
Fossil flies from what is now Denmark reveal some striking similarities between insect eyes 54 million years ago, and our own vision today.
Changes in our environment can reveal previously hidden mutations in our DNA with potentially good and bad consequences.
The newly discovered Heracles inexpectatus stood nearly a metre tall. And its fossil bones sat undiscovered on a museum shelf for more than a decade before its hefty status was finally appreciated.
New evidence boosts the idea that species with males who compete for mates adapt faster to changing circumstances.
Media coverage of sharks often exaggerates risks to people, but more than 500 shark species have never been known to attack humans, and there's lots to learn about them.
Happiness is a human construct, an abstract idea with no biological basis. But this is something to be happy about.
The ethnic and religious composition of our societies is increasing rapidly. How will these changes impact our quality of life?
Remains found in the Joggins Cliffs at the Bay of Fundy in Nova Scotia reveal further clues about ancient ecosystems.
Scrapping the idea of a species is an extreme idea – but perhaps a good one.
A new study shows the enigmatic hominin species Australopithecus africanus may have breastfed young for around 5-6 years – a very costly practice for the mother.
New research outlines how the ancestors of modern humans interbred with several archaic human groups on the passage from Africa to Australia.
The fish at your favourite lake may be outsmarting you.