Be Smart
Does My Dog Know What I'm Thinking?
How many words does the average dog understand? According to Dr. Coren, they understand 165, though with training, some understand more than 1,000 — including differentiating between verbs and nouns. The video shares research into what...
Crash Course
Hearing and Balance
Sounds travel into our ears at 770 mph. Teach class members about our sense of hearing and how this helps with balance. Learners explore sound as it travels from the air into our ears and is translated by the brain. They then see how...
Stated Clearly
What is Evolution?
A short video offers a simple, yet engaging, explanation of the theory of evolution using amoebas as an example. The narrator uses the example of the evolution of dog breeds as an example of how humans can influence the course of change.
Crash Course
Speciation: Of Ligers and Men
Ligers grow at a rate of 2.2 pounds every second day, thus by the end of their first year, they can weigh up to 364 pounds. Ligers are the subject of a video the looks at hybrids and shows viewers how speciation can occur via allopatric...
Stated Clearly
What is DNA and How Does it Work?
Discussions of DNA occur in Jurassic Park, X-men, Dexter, and CSI, yet many don't fully understand it. The video explains what DNA is, where it is located, and how it forms proteins. The chemistry of life becomes understandable through...