The waters around the United States are home to many threatened species who need science-based conservation policies to save them from extinction. They won’t get that for the next four years.

Evidence from the pandemic found that bighorn sheep populations soared when people weren’t around to disturb them.

The world still faces a growing extinction crisis, but that hasn’t stopped conservation efforts or individual overachievers. Here are some of the animals who made a difference.

We asked conservation researchers to send us their best papers of 2024. They surprised us with some powerful and important science.

The United Kingdom, a major European player in the global ornamental fish trade, offers a case study of this industry’s problems — and its potential solutions.

Melting glaciers, plant genetics, protection from forever chemicals, and more: An annual look at the conservation horizon reveals priorities for the years ahead.

Marine biologist Monica Biondo has spent more than a decade studying the multibillion-dollar market for these colorful fish, which pulls thousands of species from the ocean each year.

Journals this month looked at “fabulous but forgotten” ecosystems, hungry monkeys, roaming lions, lead-poisoned birds, and more — including a focus on microplastics.

As the fish swim back to places they haven’t reached for more than a century, scientists will watch for signs of the watershed’s recovery.

The 450-million-year-old fish is crucial for the Yakama Nation’s health and culture — and the region’s ecology.