When waves travel in deep water, they move without being really hindered, as the depths are often very deep. The wave transfers its energy without...
Cetaceans, such as dolphins or whales, possess a very sophisticated echolocation system to navigate in the water, using sounds and their echoes to map their...
The salinity of the oceans depends too much on the climate to be uniform. When it’s very hot, evaporation speeds up significantly, leaving the salt...
Underwater, sunlight is quickly filtered, and it's certain colors that suffer first. Indeed, water gradually absorbs colors according to their wavelength: first red, then orange, next yellow,...
A tsunami often starts when a sudden underwater event displaces a huge volume of water. Typically, this happens as a result of an earthquake beneath...
Phytoplankton are microscopic organisms that float near the surface of the oceans and perform photosynthesis, somewhat like terrestrial plants. They alone generate about half of...
Dolphins have a very streamlined fusiform shape, highly adapted for gliding through the water, minimizing resistance that slows them down. Their head is slender and...
Underwater, colors gradually disappear as you go deeper. In reality, water acts as a filter that absorbs certain colors faster than others. Red is the...
Water is a great conductor of sound due to its high density: the molecules are close together, and sound easily travels from one to another. Underwater, sound...
In certain fish living in extreme cold, such as Antarctic fish, there are proteins in their blood called antifreeze proteins. These proteins prevent the formation...
