Long before hordes of tourists and biologists began flocking to Costa Rica for its amazing biodiversity, the country’s native people became the area’s first wildlife experts.

Found only in Costa Rica, the Hymenoepimecis argyra parasite wasp doesn't just kill orb spiders. It also takes over the spiders' minds and forces them to do its bidding.

Prior to the 20th century, many North Americans participated in a Christmas Day tradition known as a Side Hunt, in which they ventured into the countryside...

When looking for wildlife in Costa Rica it’s easy to become fixated on the unusual mammals and vibrant birds, but one of the country’s most complex creatures lies underfoot.

The Spanish or indigenous American terms for these creatures are nothing short of fascinating. Here's a glimpse at the amazing lexicon that’s been created for Costa Rica’s wide array of creatures.

One of the most spectacular wildlife displays on the planet is happening in the skies over Costa Rica’s Caribbean coast right now: fall raptor migration and the formation of a "river of raptors." And thanks to a geographic bottleneck, one of the best places in the world to witness it is the Kèköldi indigenous territory on Costa Rica's southern Caribbean coast.

One of the most spectacular wildlife displays on the planet is happening in the skies over Costa Rica’s Caribbean coast right now: fall raptor migration and the formation of a "river of raptors." And thanks to a geographic bottleneck, one of the best places in the world to witness it is the Kèköldi indigenous territory on Costa Rica's southern Caribbean coast.

Continuing last month's series, a look at five more birds that are common in the trees, telephone wires, rooftops, and sidewalks of San José.

Birding is the nature-lover's antidote to living in the city, because birds are everywhere. And the ones you see while sitting in traffic are no less amazing than those deep in the rain forest.

It's rainy season, which in Costa Rica is also frog orgy season.