Giant groundsels are rare plants that grow up to 30 feet (9 meters) tall. They are endemic to the slopes of Mount Kilimanjaro ...

In a pristine corner of the Amazon, Brazilian and British scientists have spent more than two decades simulating drought to understand how the rainforest might respond to a drier future.

Humboldt penguins, native to the coasts of Chile and Peru, are considered "vulnerable" with a drastically reduced population.