Although every species on the planet somehow plays a role in maintaining the ecosystem, there are some species whose absence would collapse the entire health of our planet. These creatures may include ...

BOULDER, Colo. — A rare tropical bird has been spotted in Colorado, drawing the attention of excited birdwatchers. An anhinga, also known as a "snake bird," has appeared in eastern Boulder County, ...

From the striking rainbow colors of parrots in the rainforest to the brilliant flashes of yellows, oranges and blues in coral reefs, vibrantly colorful wildlife abounds in tropical ecosystems. But ...