Two wolves

The Totally Unromantic Origin of Monogamy

Evolutionary biology offers theories as to why some mammals engage in monogamy. And no, it's not because they're in love. (Sorry.)
Physarum polycephalum

Amoebas Are Smarter Than They Appear

Why slime molds can solve math problems that you can't.
Restoration of Burgess Shale fossil arthropod Waptia fieldensis

Meeting Earth’s First Animals at the Burgess Shale

The Burgess Shale is a huge deposit of unique fossils that reveals records of the middle Cambrian, a vital period in evolutionary history.
The InSight lander operating on the surface of Mars.

What’s Inside Mars?

Everything scientists think they know about the interior of Mars is based on indirect observations. NASA's new InSight Lander aims to change that.
A cluster of deep sea octopus Muusoctopus robustus.

The Last Vigil of the Octopus Parent

For some species of octopus, reproducing is a lonely act that ends in death.
Hayabusa2 Approaches Asteroid Ryugu

Asteroids Are Windows to the Past

Japan’s space agency has landed rovers on Asteroid Ryugu. The photos and samples from the mission will reveal a lot about asteroids.
conodonts

The Most Abundant Creature You’ve Never Heard Of

Conodonts are actually older than the oldest previously known vertebrates, making them the earliest known “skeletonized” vertebrates in existence.
Microwaves

How a Microwave Weapon Might Work

Personnel at the U.S. embassy in Havana have reported mysterious sounds and physical symptoms consistent with brain injury. Could it be microwaves?
megalodon shark

The Real-Life Meg

One of the many misconceptions about the ancient megalodon is that it was an extinct, larger ancestor of the great white shark.
plastic waste

Where are the Biodegradable Alternatives to Plastic?

New polymers meant to either biodegrade or to last longer would reduce waste. So what is taking science so long to create them? Well, it's complicated.