New ReviewSome traits only exist in males and some only in females. Pupils learn how the location of genes on sex chromosomes determines them using an interactive lesson. An animation illustrates how scientists know this to be true and shows how...

New ReviewAre you an XX or an XY? Budding scientists learn about cellular fertilization and the determination of gender in a thorough online lesson. They follow their study with a set of interactive reflection questions.

New ReviewWhat's the difference between body cells and sex cells? Learners explore the question and the process of meiosis using an interactive lesson. An animation describes the discovery of meiosis and describes its phases for a detailed and...

Nationwide, over 40 percent of pregnancies are unintended. A lesson designed for women of childbearing age asks them to consider their goals and provides information about reproductive health. Learners view a PowerPoint presentation and...

Learn a little about what makes humans unique. Young scholars view a video lesson as an introduction to chromosome pairs. Images show pairs of chromosomes including the XX or XY sex chromosome combinations.

Which came first: the chicken or the cosmic egg? With the third video of 41 in the Crash Course World Mythology series, pupils delve into the world of creation myths. Scholars learn about cultures throughout history that have used the...

Forward and backward, it's all the same! Scientists recently discovered the y chromosome's palindrome nature suggests it's possible to for the y chromosome to recombine with itself! An animation resource gives viewers insight into the...

Sex chromosomes determine gender, but how? An informative video presentation discusses meiosis with an emphasis on the structure of the sex cells. Viewers learn why the X and Y chromosomes are so important.

Coral reefs cover less than one percent of the ocean floor, yet more than 25 percent of marine life lives in coral reefs. A colorful, engaging video describes the health of coral reefs and why the formations matter. The first lesson in a...

What prompts an ostrich to perform its courtship dance ... for humans? The fourth and final installment in a Reproduction video series examines the importance of animal courtship behaviors, as well as the research that revolves around...

A field trip to study reproductive behavior of big game is a great set up for big-time learning! Part two of a four-part Reproduction video series takes viewers up close and personal with the animal residents of a wildlife preserve in...

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...

Change is good ... unless you're a tuatara! Meet Earth's oldest surviving reptile species in a fun video from an extensive science playlist. Content includes why the tuatara did not evolve and its unique anatomy.

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,...

Humans, fruit flies, and reptiles have their own rules where sex chromosomes are concerned. Scholars flip through a slide show offering an explanation of the chromosomes that determine the sex of different species. What is female in one...

Set the record straight with a series of health-related lessons that discuss human sexuality. Over the course of 11 group and individual activities, learners discover biological, emotional, and social facts about sexuality. 

Pupils learn about both male and female anatomy before understanding how they work together to make a baby. Scholars discover new vocabulary, create a presentation on fertilization, and discuss related topics.

What makes a living thing, well, living? Explore the many characteristics of living things through an animated video. Science scholars become acquainted with the obvious and not-so-obvious traits exhibited by organisms, then learn that...

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 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...

Keep learners informed about their options and rights when it comes to their sexuality. An in-depth lesson plan guides teenagers through a discussion on sexually transmitted diseases, teen pregnancy, and emotional consequences to having...

Birds, bees, flowers, trees ... and Funisia dorothea? Biology scholars journey back in time to discover more about the history of sexual reproduction. The video, one of many in a biology playlist, covers our earliest eukaryotic ancestor,...