What force drives a species' will to survive and thrive? Explore reproduction through the first of a four-part video series. The narrator discusses both sexual and asexual reproduction and cites examples of each. 

Do our experiences in childhood become part of our genetic makeup? The third of a four-part video series focusing on reproduction examines trending research in epigenetics. The narrator explains the experiment, data, and analysis of the...

Is that warm, fuzzy family feeling a product of evolution? Explore altruism through a video from an engaging science series. The narrator discusses parental instincts, evolutionary fitness, and an organism's drive to ensure it passes its...

From anteaters to zebras, why are both sexes equally represented in number? Explore a quirk in evolution with a video from a thought-provoking science playlist. The narrator shows examples of species that might only need a few males,...

How do organisms end up with such a wide variety of traits? It's in their genes! Kick off your inherited traits lesson using a brief video that covers alleles and genes. The narrator describes heterozygous and homozygous genotypes, how...

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...

Ever wonder how scientists determine how animals are related, or who is guilty of a crime? Discover gel electrophoresis in an easy-to-understand video from a fun biology playlist. Topics include how restriction enzymes create segments of...

Why do some organisms reproduce sexually, others reproduce asexually, and some both? Biology scholars examine the pros and cons of sexual and asexual reproduction through a short, informative video. The resource offers great examples of...

Why do siblings often look so different from one another? Discover the process of making gametes using a short video from a large biology playlist. The narrator explains each step while animated chromatids play out the scenario that...

Why can't mules have babies? Answer this—and other burning animal kingdom mysteries—with a short, sweet speciation video! Zoology scholars examine the ins and out of evolution, the role geography plays in inheritable traits, and, most of...

Pupils puzzled by pedigree charts? Not anymore! Show them proper pedigree protocol using a short video from an excellent biology playlist. Content includes pedigree symbols and terminology, interpreting pedigrees of various lengths, and...

[Free Registration/Login may be required to access all resource tools.] In this Kahn Academy video, learn about Punnettt squares, with specific information on dihybrid crosses, independent assortment, incomplete dominance, codominance,...

The process of evolution through natural selection is the focus of this video segment from Evolution, which presents a field study of hummingbird speciation in Ecuador. [6:41]