Indicator species are living organisms that tell us that something has changed or is going to change in their environment. They can be easily observed, and studying them is considered a cost ...

One technique involves finding species that are sensitive to ecosystem change in a given area, but this is tough work. Many of the best indicator species are small and hard to find.

If you were to line up every species on Earth in the order of most to least at risk of extinction, ... (In science speak, they are what’s known as an “indicator species.”) ...

Salamanders may seem like insignificant creatures that enjoy wandering around humid environments. Yet they play a fundamental role in the good functioning of ecosystems, which is vital to sustain life ...

The species has been in decline for thirty years, facing a 60% decrease within that time. Officials stunned as trail cameras capture rare glimpse of species roaming in national park: 'An indicator ...

The DNA of six endangered fish species was found in fish maw products from stores in Singapore and Malaysia, a new study ...