Search results for “variation”

Genetic Variance Through Sexual Selection

For more Science Videos: https://lt.org/ * How does sexual selection contribute to biodiversity on earth? ASTRID T. GROOT investigates this question using the example of moths. As she explains in this video, in many species, including moths, the most common individuals are chosen as mates and the on

How genes and environment affect life

Is our personality shaped by the environment or are we largely genetically programmed? No one can answer whether nature or upbringing leads to certain character traits in people. However, we know a lot about the influences of genes and environment when it comes to groups of certain populations - esp

The Ocean: A Driving Force for Weather and Climate

Learn how the ocean relates to weather and climate in this video from NASA. Uneven heating from the Sun drives ocean and atmospheric circulation. Animations and satellite data show how ocean currents and eddies distribute energy and nutrients around the world. Heat exchanges between the ocean and th

Investigating the Moon's Interior | NASA Planetary Sciences

Discover how scientists plan to use data from the GRAIL mission and a map of the Moon's gravitational field to learn about its internal structure. By comparing data about the Moon's gravity with information about its topography, scientists can gain a better understanding of the Moon's formation and