Medieval medicine is a mash-up of multicultural ideas! How did early doctors learn to do no harm? The ninth video in a 15-part series about the History of Medicine uncovers the fundamental teachings that sparked intense anatomical study...

Form follows function, from simple bacteria to complex mammals. Demonstrate this essential standard, LS1A, using the tips in a short video about the Next Generation Science Standards. Topics include when to introduce cells and organelles...

How do you put 4.5 billion years into terms that young scholars can understand? Use your arms! Examine just how long our Earth has been around in a short video. The content includes the appearance of single-celled, then...

Is it true that larger animals have longer lifespans than smaller animals? Does an animal's habitat help shape the length of its life? And does the ability to adapt and evolve allow living things to expand their lifespans? Watch a...

Not only does Patrick the Starfish live under a rock, but so do many other types of creatures. From slugs to centipedes to spiders, rocks are home to all sortss of crawly things. Find out more in the video.

Are aliens real? Find out with an engaging video that details the three ingredients—water, oxygen, and food—necessary for living things to survive. 

And the prize for oldest living thing on Earth goes to . . . In this video from PBS Digital Studios, viewers learn about the oldest living things on Earth, all over 2,000 years old, such as bristlecone pines, baobab, sea grass,...

We all know what it means for something to be living, right? In the first installment of a five-part video series, viewers first learn about the seven characteristics of life. The video then analyzes these characteristics in relation to...

Is there life beyond Earth? Take a look through a virtual telescope in a video that provides possible scenarios in which life could exist on other planets.

How do plants transform the sun's light energy into chemical energy? This is the focus of a video that explains the processes of photosynthesis.

What do animals and humans have in common? We both build homes that are suitable for our means of living, of course! This is the focus of a video that compares how humans and animals change the environment around them.

What type of effect can the geosphere have on the biosphere? This is the focus of a video that explains how geologic features and landforms directly affect the types of living things in a habitat, positively, and negatively.

Earth has four spheres. What are these spheres and what makes them unique? This is the focus of a video that describes what makes up two of the four spheres: the geosphere and biosphere.

What happens when an ecosystem gets out of balance? This is the focus of a video that explains the importance of each organism's role in an ecosystem.

Why can't a polar bear live in the desert? Because the bear's food source lives in the habitat in which it thrives. This is the focus of a video that explains why certain animals live in specific habitats.

Most of the water on Earth is found in our oceans; however, humans cannot survive on salt water. Instead, we need freshwater. So, what is freshwater and where does it come from? This is the focus of a video that discusses the differences...

What happens to all the waste created in nature? This is the focus of a video that explains how decomposers break down waste to be used as nutrients and turned into energy for other living organisms.

What is a food chain? Energy flows between living things in a food chain. This is the focus of a video that explains how food chains work.

How do different types of living things get the energy they need? This is the focus of a video that describes how carnivores, herbivores, and omnivores get the energy they need to live.

Why do we eat? We eat because we need energy, and humans need energy to grow. This is the focus of a video that explains why organisms need food to live.

With the thousands of tasks our brain consciously performs on a daily basis, it's amazing that breathing isn't one of them. Learn how human bodies are able to automatically control the exchange of gas that keeps us alive...

When is a person no longer living? This question has been puzzled over for millennia, but is there a clear answer? Watch as this video examines the biological line separating life and death.

Sal clarifies concepts covered in the Khan Academy video on Biodiversity in the Phanerozoic Eon. He explains the types of animals and plants that were the first life forms on land. Additionally, he describes what these organisms would...

Visit the "Amazon Voyage" exhibit at the Patricia and Phillip Frost Museum of Science. Learn about maps, experience the river underwater, see how real stingrays and anacondas camouflage themselves, and celebrate at a fish festival!...