Giant clams, some of the largest mollusks on Earth, have long fascinated scientists. These impressive creatures can grow up ...

For more than 150 years, scientists have debated whether Prototaxites—which stood roughly 24 feet tall and 3 feet wide—were ...

Instead, your evening stroll is illuminated by luminous trees giving off a calming blue ... and a few kinds of algae — use to produce their own light. It's an incredibly beautiful phenomenon ...

The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South ...

Giant clams, among the largest mollusks in the ocean, are a fascinating part of tropical coral reefs. These enormous ...

As winter strips deciduous trees bare, lichen becomes more visible on branches and trunks, according to the Texas A&M Forest ...

The Hoffman's two-toed sloth is one of the world's slowest mammals—so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of ...

Found on every continent, lichen is an extraordinary organism adapted to survive in every habitat except seawater.