Even as scientists rush to identify the migratory paths of some endangered shark species to help better protect them, climate change and other threats shift this behavior, adding urgency to the research.

By suppressing dissent and stalling environmental protections, President Chaves is emulating Trump.

Since the film’s release, sharks have experienced the worst declines in their 450-million-year history. Can we trace that decline to their villainous portrayal in this influential movie?

You might not think to look for fish in a forest, but look fast: These amazing fish depend on a disappearing swamp forest on an island in Indonesia.

Marine protected areas are designed to safeguard parts of the ocean from human impacts, including offshore oil and gas extraction and industrial fishing practices.

Toxic algae blooms in Lake Erie. As Toledo tries to clean up, restoring wetlands could help.

Animal-rights activists come together in San Diego to stand up for tortured animals and hope others will follow.

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.

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.

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.