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

Giant clams grow huge by relying on algae for energy. Scientists found genes that help them live with algae and grow big.

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 ...

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 ...

The fungus provides a structure for lichen to anchor itself to trees and rocks. The algae perform photosynthesis, supplying energy for growth. Yeasts and bacteria help protect lichens from disease.