Ants leave behind chemical substances called pheromones, which function somewhat like scented signposts to guide their peers to food. The more a path is traveled, the more...
Caves have a very specific atmosphere: the temperature often remains cool and stable throughout the year. There are no major sudden fluctuations that could damage...
Birds sing in the morning primarily to mark their territory: by singing at dawn, they remind their neighbors which areas are already taken, in order...
Black sand comes directly from volcanic eruptions. During an eruption, lava bursts forth and cools quickly upon contact with water or air. By cooling abruptly, the lava...
Starfish contain very special cells called stem cells that can produce almost all the cell types necessary for regeneration. These stem cells, stored in reserve...
Bees build their cells in the shape of hexagons because this shape allows them to fill available space without wasting it. Unlike round shapes that...
Thunderstorm clouds form when warm, moist air rises rapidly into the atmosphere. As it rises, this air cools, forming water droplets and ice crystals that...
Plankton is a true floating cafeteria, freely drifting in the oceans and nourishing a multitude of marine organisms. It plays a major role as the...
The Earth orbits the Sun in a regular orbit. During this time, it passes each year through certain areas where many small debris left by...
Algae are champions at producing oxygen through photosynthesis. Like terrestrial plants, they capture sunlight using their pigments (notably chlorophyll), and then take in carbon dioxide...
