Polar regions contain vast, undiscovered biodiversity but are both the most-threatened and least-understood areas of the world.

Many songbirds are nesting earlier in spring because of warmer temperatures brought about by climate change. 

Algae living within the soft tissue of coral supply much of the energy needed by their hosts, and some symbiotic algae help coral withstand warmer water better than others.

Bees are important pollinators of agricultural crops, but this can expose them to pesticides while they collect nectar and pollen, some of which are very toxic to bees.

Clearing mangroves to stop estuaries getting clogged with mud actually makes the problem worse, new research shows.

As the planet gets hotter, animal and plant species around the world will be faced with new, potentially unpredictable living conditions, which could alter ecosystems in unprecedented ways.

Rivers are one of the main sources of pollution by microplastics (5 to 0.0001 mm in size) and nanoplastics (smaller than 0.0001mm) in the oceans.

Naturalised species, which are not native but have established themselves in new locations, could spread even further in many parts of the world, new research shows.

Seabirds roam far and wide in the Indian Ocean – so they need ocean-wide protection, new research shows.

City lights shine all night amid the bustling traffic, businesses and neighborhoods of Southern California, one of the most populated areas that mountain lions call home.