In Mozambique, researchers are racing to understand the genetics of elephants born without tusks—and the consequences of the trait.

Destruction likely to be just the tip of the iceberg, campaigners warn

Plants are boring. They just sit there photosynthesizing while animals have all the fun. Right? Not so much. Take a look at the interactions between ants and plants—plants have evolved features specifically to make them enticing to ants, like juicy nectar for the insects to eat and hollow thorns for them to take shelter in. In exchange, plants use ants to spread their seeds and even act as bodyguards.

Researchers are just now beginning to understand what happens when one whale species attacks another

Found in the Amazon rainforest, this incredible arachnid looks like a strange cross between a dog and a spider.

As drones become smaller and cheaper, experts urge people to use caution when flying near wild animals like this brown bear and her cub.

"After being defrosted, the nematodes showed signs of life. They started moving and eating."

As Palau bans sunscreen to protect coral reefs, we look at other products causing environmental damage.

The world is bad, but babies remain good.

The world's most popular fruit is facing extinction, and scientists are racing to use gene-editing to save it. To succeed, they'll need to overcome an even bigger problem: opposition to GMO crops

In Venezuela, the red siskin (Spinus cucullatus), a vibrantly colored red-and-black finch, is inextricably linked with the country’s identity. It is present in poems, paintings, names of streets and sports teams and even graces the back of the 100,000 Bolivar bill, but it is rare in its natural habitat. To help reverse this, the Smithsonian and the Piedra de Cachimbo coffee farmers in northern Venezuela stepped in.

Veteran broadcaster says Dynasties, his new BBC wildlife series, will be gripping, truthful and entertaining but not overtly campaigning

They live thousands of feet below the Earth’s surface. They eat hydrogen and exhale methane. And they may shape our world more profoundly than we can imagine.

Why trees grown in test tubes could be the answer to preserving the world's forests for the future.

New ultra-slow-motion footage captures aggressive roach defense mechanisms

The huge loss is a tragedy in itself but also threatens the survival of civilisation, say the world’s leading scientists

The long read: We like to think fish have no feelings. And yet the idea that they have both memory and a capacity for suffering is gaining ground among scientists

Noise from ships and boats are causing dolphins to make their calls less complex, according to a new study.

The National Butterfly Center is a habitat for more than 100 species of butterflies. The proposed barrier would cut off 70 percent of its property, putting it in a no man's land along the Rio Grande.

A new study found that birds' dinosaur relatives had eggs with traces of two pigments—a red-brown one and a blue-green one. In today's birds that might produce a color such as robin's egg blue.

The long read: Beekeepers are sounding the alarm about the latest developments in genetically modified pollinators

When it comes to cooperation, there's no monkey business in how some chimpanzees respond. These primates often make decisions faster that benefits others than themselves, according to a newly published University of Michigan study.

The 2017 North American eclipse gave researchers an inside look at how bees respond to light—with the help of a few hundred elementary-schoolers

Scientists break the rules of reproduction, so what does it mean for the future of sex?

Are there many subspecies of tiger, or only two? A correct accounting is the only way to preserve what is left of the animal’s genetic diversity, some scientists say.

A fresh perspective on the fragility and resilience of our world.

Cecil the lion captured the world’s attention earlier this year when an American dentist hunted and killed him. People were justifiably outraged at this tragedy — so much so, in fact, that they turned against the entire practice of trophy hunting. Numerous airlines responded by banning the transport of a range of hunting trophies on their flights. In October, people were again infuriated when a German hunter shot a 40- to 60-year-old elephant in Zimbabwe.

“Predator boot camps” in Australia are teaching a group of native animals some hard lessons in coexistence

Only birds have a special voice box — the syrinx — and it's what they use to sing. But what's so unique about the syrinx is that it's actually an evolutionary anomaly.

Earth is panting as soil struggles to keep up with climate change.

Nudibranchs may look cute, squishy and defenseless ... but watch out. These brightly-colored sea slugs aren't above stealing weapons from their prey.

Inspired by indigenous views of nature, a movement to grant a form of legal “personhood” to rivers is gaining some ground — a key step, advocates say, in reversing centuries of damage inflicted upon the world’s waterways.

A growing body of evidence points to how animals are aware of death and will sometimes mourn for or ritualize their dead

Most of the extinctions were caused by deforestation in South America, a new study of endangered birds shows

Videos abound on the internet of people using customized hats and other tools to hand-feed the tiny fliers. Here’s what you need to know if you’d like to try it.