Life Goes On: Fishes: Survival in a Challenging Environment
Two features of water, viscosity and density, present challenges for fishes that are very different from what animals who live on land or in the air must face. Fishes have been able to meet these challenges through a number of physiological adaptati...
Subject: friction
Transcript: through molecules That are very dense and viscous. Therefore there's a lot of friction drag. So fishes that need to move fast have evolved lots Of
Deep Connections: Differences Between Deep Ocean and Surface Currents
The flow of ocean currents follows predictable patterns governed by a variety of physical factors. For surface currents, which include water flow horizontally in the upper four hundred meters of the ocean, wind is the primary driving force. For deep...
Subject: friction
Transcript: blowing. Obviously, you don't have that on the deep ocean. But on the deep ocean, you have friction against the bottom, Which you don't have on the surface