Although some may be crocodile tears, crying is a distinct honor humans hold. Scholars learn the biological reason behind the emotional crying in a video lesson. The lesson instructor explores the anatomical and psychological connections...

Humans on average are shorter than they were centuries ago. Young scholars analyze the factors that affect the height of individuals including historical trends in a video lesson. The presentation analyzes both genetic and...

Mosquitos can be more than just annoying, they may be deadly. A video presentation explains how mosquitos transmit the malaria virus to humans. The lesson highlights how the disease manifests itself in the mosquito before it bites a...

Chromosomes, genes, traits ... how are they all related? A short video introduces the many factors involved in heredity. Junior geneticists explore the transfer of chromosomes from parents to offspring, the proteins created by base pair...

Survival is a game of chance, catch my drift? Examine the factors that influence genetic drift with an entertaining video from a large biology playlist. The resource covers the myriad conditions that come into play when a species...

Construct an inheritance unit that's pure gene-ius! Untangle the vast amount of information found in standard LS3A, Inheritance of Traits. The video shows examples and scenarios suited for all age and ability levels, as well as helpful...

Learn how the study of adaptation progresses through grade levels. The narrator provides a curricular view of teaching adaptation complete with examples. Concepts range from simple trait adaptations to speciation and natural selection.

Charles Darwin and Alfred Russel Wallace jointly created the theory of evolution by natural selection. The video explains the scientists that came before and after this pivotal moment. Many still debate why we often forget about Wallace...

Biological fitness involves the number of offspring you produce and is not dependent on working out. The video explains natural selection using cartoon graphics of frogs on a log. Then it introduces evolution through antibiotic...

Why do bricks make terrible windows? Learn about how the different properties of matter, including transparency, reflectivity, and freezing, boiling, and melting points can help you observe what they are, as well as indicate their...

Thomas Hunt Morgan's pioneering fruit fly work that helped validate the chromosomal theory of inheritance. [10:40]

Learn about allele frequencies in populations and how they differ from genotype frequencies. [7:27]

This Dinosaur Train video will help children foster the understanding of heredity: inheritance and variation of traits. Buddy and Daphne compare how they are similar and different. Included are printable dinosaur fact cards. [0:54]