Biology

Lightning and other environmental electricity may jumpstart reproduction for the Amazon Basin fish.

The butterfly defends itself using milkweed, just one of several plants packed with heart-stopping toxins that may also be in your medicine cabinet.

An environmental microbiologist explains why an individual's death is a new lease on life for an entire ecosystem.

We journey through the ocean depths, meeting a different cephalopod at each stop along the way.

The project aims to make a complete 'bee atlas,' detailing every single local pollinator.

For these researchers in Southern Africa, tagging the apex predators starts with putting them in trancelike tonic immobility.

Eoghan Daltun has spent 14 years creating a showcase of native biodiversity.

All you need is a jar of local water and a microscope—you may even find new species. Welcome to Algae Obscura.

From 600-pound catfish to ancient sturgeon, these giants could be lurking in a river near you.

Why do mole rats, Brandt's bats, and bowhead whales live so much longer than their relatives?

At the Moriyama City Firefly Forest Museum, nurturing Genji fireflies comes with homework.

The Mauritius kestrel benefits from a plant that's harming the island's ecosystem, complicating conservation efforts.

Tenerife's Playa de las Teresitas attracts tourists looking for sun—and endangered angelsharks.

During massive fires in Indonesia, the critically endangered primates' voices provided clues to their overall health.

The Juan Deriba killifish, found in a tiny area of Bolivia, jumps out of water to evade threats.

At Orlando Wetlands Park, water goes for a ride—through a natural filtration process—and attracts birds, gators, and more.