2016-10-22T11:01:30ZMature forests often have several distinct layers including the forest floor, herb layer, shrub layer, understory, canopy, and emergents.
2016-10-22T11:01:30ZTemperate forests evolved 65 million years ago when global temperatures dropped and, in areas further from the equator, cooler climates emerged.
2016-10-22T11:01:30ZHere are 10 essential bear facts, ranging from how these animals hibernate to how they communicate.
2016-10-22T11:01:30ZAnimals are characterized by their wide array of organ systems, which help these organisms breathe, reproduce, and respond to their environment. Here's a slideshow of the 12 main animal organ systems.
2016-10-22T11:01:30ZThe boreal forest is a terrestrial habitat that consists of vast coniferous forests that encircle the globe in the high northern latitudes.
2016-10-22T11:01:30ZFamous for having five arms, starfish are fascinating invertebrates that move across the seafloor using an intricate hydraulic system and tiny tube feet.
2016-10-22T11:01:30ZNinety-five percent water, equipped with millions of stinging cells, jellyfish are some of the most beautiful (and most dangerous) animals on earth.
2016-10-22T11:01:30ZDecode some of the jargon that is used in the science of ecology to describe natural communities, populations, and ecosystems.
2016-10-22T11:01:30ZTuatara are a rare group of reptiles that include only two living species that inhabit the small rocky islands off the coast of New Zealand.
2016-10-22T11:01:30ZGastropods are a group of mollusks that undergo torsion as they develop which results in a twisting of their body along its head-to-tail axis.
2016-10-22T11:01:30ZSnowy owls are large owls with white plumage and their extreme northerly range which includes tundra habitat throughout Alaska, Canada and Eurasia.
2016-10-22T11:01:30ZDiscover how some species can be the glue that holds an entire ecosystem together. And find out why such keystone species are sometimes the least likely critter.