full moon

Nobody Really Knows Why We Dream

An extensive literature review reveals a startling lack of consensus around why we dream, though neurologists have made important discoveries.
A shark being cleaned by smaller fish

Where the Small Fish Clean the Bigger Ones

A "cleaner station" is a sort of undersea business, a place where large, often predatory, fish go to have parasites removed.
Tree thinning in a national forest shows detail of the logging industry in Oregon.

Does Forest Thinning Work?

Does forest thinning, a land management strategy, offer an effective solution to the problem of forest fires?
Dolphins in captivity

The Ethics of Research on Captive Dolphins

Researchers say that dolphins are so smart that captivity causes them psychological harm. But getting data in the open ocean can be tricky.
A pair of humpback whales

The Cultural Differences in Humpback Whale Songs

One group of researchers found distinct differences among songs from groups of humpback whales that are geographically isolated from each other.
A new lava stream cascades into the ocean at the former lava delta site in Hawai‘i Volcanoes National Park.

Volcanic Ecosystems in the Deep Ocean

Undersea volcanoes, like Hawaii's Kīlauea, foster diverse ecosystems in an environment far from sunlight—and as acidic as lemon juice.
A variety of beetles mounted on a board

The Race to Name New Species

Habitats are being destroyed so rapidly that species can go extinct before they are even named.
A river

The Controversial Core of the Clean Water Act

Proposed changes to the Clean Water Act would make it more difficult to define what bodies of waters are deemed worthy of protection.
Antechinus stuartii

Death and Mating

Semelparous organisms reproduce exactly once in a lifetime.
A fire burns in a section of the Amazon rain forest on August 25, 2019 in the Candeias do Jamari region near Porto Velho, Brazil

Can Fire Destroy the Amazon?

The massive fires of 2019 have many asking the question: is there a "tipping point" beyond which the Amazon cannot recover?