In this Click & Learn, students explore mathematical models that describe how populations change over time and apply these models to the invasive lionfish population in the Bahamas. They also use data from other species to learn how density-dependent factors limit population size.

The added information provided at pause points within the animation Coral Bleaching allows for a richer exploration of coral reefs, symbiosis, and other topics in biology.

Inside the U.S. and Panama’s long-running collaboration to rid an entire continent of a deadly disease.

The world has lost more than one quarter of its land-dwelling insects in the past 30 years, according to researchers whose big picture study of global bug decline paints a disturbing but more nuanced problem than earlier research.

Samoa’s population of “little dodos” is dwindling down to nothing, but the appetites of wealthy people keep putting these rare birds at risk.

China cracked down on the sale of exotic species after an outbreak of a new virus in 2002 was linked to markets selling live animals. Now another coronavirus is spreading through China, prompting calls to permanently ban the sale of wildlife.

To change the fate of the kittiwake, scientists are trying to model its world.

Already pressured by the mining and forestry industry, and other development that encroach on grazing land, Sami herding communities fear climate change could mean the end of their traditional lifestyle.

New data about the pace of climate change have called into question how much of the Everglades can ever be salvaged — and what that even means.

To save Brazil’s giant anteaters, scientists are grappling with one of the planet’s most transformative forces: roads.

Following the lead of the U.S., other nations have designated marine sanctuaries and protected areas, which now cover about 6% of the world’s oceans — a bonanza for researchers but, more importantly, an important tool for safeguarding the seas.

They still bite, but new research shows lab-grown mosquitoes are fighting dangerous dengue fever that they normally would spread.