Evolution
Why Seed Beetles Are Caught in a "Sexual Arms Race"
The strange spiky penis of the cowpea beetle seems to drive the evolution of both male and female beetles
Why Did Whales Get So Massive?
The answer is a tale of massive proportions
How Mastiffs Became the World’s Top Dogs
The large, furry dogs of Tibet took an evolutionary shortcut millenia ago
This 3.3-Million-Year-Old Hominin Toddler Was Kind of Like Us
Analysis of the ancient spine reveals tantalizing similarities—and questions about human evolution
What Does It Mean to Be a Species? Genetics Is Changing the Answer
As DNA techniques let us see animals in finer and finer gradients, the old definition is falling apart
This 36-Million-Year-Old Fossil Is a "Missing Link" in Whale Evolution
Discovered in Peru, the new fossil has tiny remnants of hind limbs
How Smart Were Early Humans? “Neuroarchaeology” Offers Some Answers
Brain Imaging Gives Insight Into Early Human Minds
How Glaciers Gave Us the Adorable, Handstanding Spotted Skunk
DNA tests suggest ancient changes in climate shaped the creatures' evolution
How Filmmakers Distill Science for the Big Screen
The new film <i>Amazon Adventure</i> turns decades of research into 45 minutes of visual majesty
Gut Check: Mandrills Sniff Poop to Avoid Peers With Parasites
Researchers have documented one of the first instances of social avoidance in a non-human animal
How Ants Became the World’s Best Fungus Farmers
Ancient climate change may have spurred a revolution in ant agriculture, Smithsonian researchers find
Scientists Think Comb Jellies May Have Come Before All Other Animals
Sorry, sponges—there’s a new oldest ancestor in town
Monkeys May Recognize False Beliefs—Knocking Over Yet Another Pillar of Human Cognition
Apes may be aware of the minds of others—yet another remarkable finding about the cognitive abilities of non-human animals
These Tropical Fish Have Opioids in Their Fangs
The point isn’t to relieve pain—it’s to kill
Unlike Dolphins, Sea Otters That Use Tools Are Not Closely Related
Rock-bashing in otters is a very old behavior
What Really Made Primate Brains So Big?
A new study suggests that fruit, not social relationships, could be the main driver of larger brains
New Study Restructures the Dinosaur Family Tree
Detailed analysis of dino fossils suggests that <i>Tyrannosaurus</i> and its relatives may be on the wrong side of the tree
This Echolocating Dormouse Could Reveal the Origins of One of Nature’s Coolest Superpowers
Mice, moths and even humans use clicks and echoes to "see" the world around them
Flirtatious 100-Million-Year-Old Damselflies Found Frozen in Amber
Scientists are learning about how insects evolved from their ancient come-hither dance
What Dung Beetles Can Teach Us About Sexual Difference
When it comes to sex appeal, it's not all in your genes (it's also in your proteins!)
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