Jennifer Leman

Arachnophobia is a fear of arachnids, a group of arthropods that includes spiders, scorpions, ticks and mites.

Northern Chile's dry and desolate Atacama Desert hosts the world's largest array of astronomical observatories. Scientists have called the largely lifeless region Earth's closest analogue of Mars.

The Coral Triangle is the most biodiverse ecosystem in the world and is home to a variety of sea creatures, including sharks, colorful corals and vibrant tropical fish.