Many animals, from insects to humans, are social. Their brains have evolved to be sensitive to sensory cues that carry social information, such as: speech sounds, pheromones and visual cues. But very little is known about how...

We touched upon sexual selection when we learned about natural selection. Essentially when there is a variance in the reproductive success of a particular sex for a given species, secondary sex characteristics will develop in that...

This CTE Health Sciences video covers proper use, pronunciation and definitions of medical terminology pertaining to the Female Reproductive System. Rather than opening up a book and trying to learn all the medical terminology out...

How a former slave became the first woman to lead an armed force in the civil war.

Amelia Earhart, a pioneer in flight and history

In this video, the teacher explains how to determine whether events are independent using conditional probability. They use the example of students in a class wearing jeans and being female to demonstrate the concept. The teacher also...

We all know that DNA is the molecule of heredity, but we didn't always know that. It had to be demonstrated empirically. As it happens, some of the first evidence put forth had to do with genes found on the X-chromosome of fruit flies,...

Throughout this series, we've learned all about the various systems of the human body. But how do humans make more humans? As a child might ask, where do babies come from? Suppress the immature giggles if you can, human reproduction is...

This video provides an informative overview of human sexual reproduction, detailing the roles of male and female reproductive systems in creating and nurturing a fetus. From the production of gametes to fertilization, embryonic...

In this video, we will be looking at sexual reproduction in plants. Did you know that there are an estimated 390,900 plant species known to science? This diversity of plant species is, in part, due to sexual reproduction. In plants,...

The human body is a wondrously complex machine made of flesh, bone, muscles, organs, blood vessels and highly specialized systems that function together to sustain life. This fascinating third part of The Human Body series examines the...

Upon viewing the Nutrition video series, students will be able to do the following: Define nutrition as a science that studies the interaction of the human body and food. State the six major kinds of nutrients including: carbohydrates,...

In this video, young people learn the biological process of menstruation. They also learn that menstruation is a normal, healthy, and clean phenomenon, which should be embraced as a beautiful entry into womanhood.

Excellent for every American Sign Language (ASL) student as well as teachers, parents and professionals learning ASL to be able to communicate clearly, naturally and start signing with the deaf community and people with hearing loss....

In this video, young people learn that a girl's hormonal cycle has four weeks, through which her hormone levels rise and fall - much like the lunar cycle. Girls are encouraged to be conscious of their physical and emotional states during...

In this live-action program viewers will learn that pollination is a key step in sexual reproduction among all flowering plants and the purpose of pollination is to allow individual plants to exchange genetic information. Students will...